Products of USGS Paleontology Studies
1990 to Present

1998 | 1997 | 1996 | 1995 | 1994 | 1993 | 1992 | 1991 | 1990

Brewster-Wingard, G.L., Ishman, S.E., Holmes, C.W., 1998

Environmental Impacts on the southern Florida Coastal Waters: A history of change in Florida Bay: Journal of Coastal Research, Special Issue 26, p. 162-172.

Brewster-Wingard, G.L., Ishman, S.E., Waibel, N.J., Willard, D.A., Edwards, L.E., and Holmes, C.W., 1998

Preliminary paleontologic report on Core 37, from Pass Key, Everglades National Park, Florida Bay: U.S. Geological Survey Open-File Report 98-122, 22 p.

Bukry, D., Brabb, E., Powell, C. L., II, Jones, D., and Graymer, R., 1998

Recent Tertiary and Cretaceous Nannoplankton collections from the San Francisco Bay region: U. S. Geological Survey Open-file Report 98-497, 27 p.

Edwards, L.E., Weedman, S.D., Simmons, K.R., Scott, T.M., Brewster-Wingard, G.L., Ishman, S.E., and Carlin, N.M., 1998

Lithostratigraphy, Petrography, Biostratigraphy, and Strontium-Isotope Stratigraphy of the Surficial Aquifer System of Western Collier County, Florida: U.S. Geological Survey Open-File Report 98-0205, 79 p. | PDF format (1.1 MB) |

Elder, W. P., Saul, L. R., and Powell, C. L., II, 1998

Late Cretaceous and Paleogene molluscan fossils of the Gualala Block and their paleogeographic implications: in, Elder, W. P., ed., Geology and tectonics of the Gualala Block, northern California: Pacific Section, SEPM Book 84, p. 149-168.

Frederiksen, N.O., 1998

Upper Paleocene and lowermost Eocene angiosperm pollen biostratigraphy of the eastern Gulf Coast and Virginia: Micropaleontology, v. 44, p. 45-68.

Ishman, S.E., Cronin, T.M., Brewster-Wingard, G-L., Willard, D.A., and Verardo, D.J., 1998

A record of ecosystem change, Manatee Bay, Barnes Sound, Florida. Journal of Coastal Research, 26, p. 125-138.

Powell, C. L., II, 1998

The Purisima Formation and related rocks (upper Miocene - Pliocene), greater San Francisco Bay area, central California. Review of literature and USGS collections (now housed at the Museum of Paleontology, University of California, Berkeley): U. S. Geological Survey Open-file Report 98-594, 103 p.

Brewster-Wingard, G.L., Ishman, S.E., Holmes, C.W., Willard, D.A., and Edwards, L.E., 1997

Environmental change in the Florida Bay Ecosystem: Patterns over the last 150 years: U.S. Geological Survey Program on the South Florida Ecosystem - Proceedings of the Technical Symposium in Ft. Lauderdale, Florida, August 25-27, 1997, U.S. Geological Survey Open-File Report 97-385, p. 8-9.

Brewster-Wingard, G.L., Ishman, S.E., Willard, D.A., Edwards, L.E., and Holmes, C.W., 1997

Preliminary paleontologic report on cores 19A and 19B, from Russell Bank, Everglades National Park, Florida Bay: U.S. Geological Survey Open-File Report 97-460, 29 p.

Brewster-Wingard, G.L., Scott, T.M., Edwards, L.E., Weedman, S.D., and Simmons, K.R., 1997

Reinterpretation of the peninsular Florida Oligocene: an integrated stratigraphic approach: Sedimentary Geology, v. 108, p. 207-228.

Browning, J.V., Miller, K.G., and Bybell, L.M., 1997

Upper Eocene sequence stratigraphy and the Absecon Inlet Formation, New Jersey Coastal Plain: in Miller, K.G., and Snyder, S.W., eds., Ocean Drilling Program, Proceedings, Scientific Results, v. 150X, p. 243-266. | Abstract | Chapter (826 KB PDF format) |

Browning, J.V., Miller, K.G., Van Fossen, Mickey, Liu, Chengjie, Pak, D.K., Aubry, M.-P., and Bybell, L.M., 1997

Lower to middle Eocene sequences of the New Jersey coastal plain and their significance for global climate change: in Miller, K.G., and Snyder, S.W., eds., Ocean Drilling Program, Proceedings, Scientific Results, v. 150X, p. 229-242. | Abstract | Chapter (634 KB PDF format) |

Bybell, L.M., and Self-Trail, J.M., 1997

Late Paleocene and early Eocene calcareous nannofossils from three cores in an onshore-offshore transect from New Jersey to the Atlantic continental rise: in, Miller, K.G., and Snyder, S.W., eds., Ocean Drilling Project, Scientific Results, v. 150X, p. 91-110. | Abstract | Chapter (27.1 MB PDF format) |

Edwards, L.E., Bybell, L.M., Gohn, G.S., and Frederiksen, N.O., 1997

Paleontology and physical stratigraphy of the USGS-Pregnall No. 1 core (DOR-208), Dorchester County, South Carolina: U.S. Geological Survey Open-file Report 97-145, 35 p.

Frederiksen, N.O., Powars, D.S., Hoffmeister, A.P., and Sheehan, T.P., 1997

Palynostratigraphy of Cretaceous and Quaternary strata in the Robins Point corehole, Aberdeen Proving Ground, Harford County, Maryland: U.S. Geological Survey Open-File Report 97-279, 31 p.

Harrison, R.W., Orndorff, R.C., McDowell, R.C., and Weems, R.E., 1997

Geology of the Ozark National Scenic Riverways: U.S. Geological Survey Fact Sheet FS-050-97, 2 p.

Harrison, R.W., Palmer, J.R., Hoffman, David, Vaughn, J.D., Forman, S.L., McGeehin, Jack, and Frederiksen, N.O., 1997

Profiles and documentation of fault-exploration trenches in the English Hill area, Scott City 7.5-minute quadrangle, Missouri (a report to the Nuclear Regulatory Commission): U.S. Geological Survey Open-File Report 97-474, 111 p.

Lesnikowska, A.D., and Willard, D.A., 1997

Two new species of Scolecopteris (Marattiales), source fructifications of the stratigraphically significant miospores Torispora securis Balme and Thymospora thiessenii (Kosanke) Wilson & Venkatachala: Review of Palaeobotany and Palynology, v. 95, p. 211-225.

Litwin, R.J., Adam, D.P., Frederiksen, N.O., and Woolfenden, W.B., 1997

An 800,000-year pollen record from Owens Lake, California: Preliminary analyses: Geological Society of America Special Paper 317, p. 127-142.

Neuman, R.B., 1997

Famatinorthis cf. F. turneri Levy and Nullo, 1973 (Brachiopoda, Orthida) from the Shin Brook Formation (Ordovician, Arenig) in Maine: Journal of Paleontology, v. 71, no. 5, p. 812-815.

Neuman, R.B., Bruton, D.L., and Pojeta, John, Jr., 1997

Fossils from the Ordovician 'Upper Hovin Group' (Caradoc-Ashgill), Trondheim Region, Norway: Geological Survey of Norway, Bulletin 432, p. 25-57.

Oliver, W.A., Jr., 1997

Origins and relationships of colonial Heliophyllum in the upper Middle Devonian (Givetian) of New York: Boletin de la Real Sociedad Espanola de Historia Natural (Seccion Geologica), v. 91, p. 53-60.

Oliver, W.A., Jr., 1997

Evolutionary relationships of the Zaphrentidae and Craspedophyllidae (rugose corals, Devonian) in eastern North America: in Klapper, G., Murphy, M.A., and Talent, J.A., eds., Paleozoic sequence stratigraphy, biostratigraphy, and biogeography: Studies in Honor of J. Granville ("Jess") Johnson: Boulder, Colorado, Geological Society of America Special Paper 321, p. 317-325.

Oliver, W.A., Jr., 1997

Ptenophyllids in eastern North America: Coral Research Bulletin 5 (Dresden), p. 203-209.

Pojeta, John, Jr., 1997

Pelecypod mollusks, in Neuman, R.B., Bruton, D.L., and Pojeta, John, Jr., Fossils from the Ordovician "Upper Hovin Group" (Caradoc-Ashgill), Trondheim Region, Norway: Norges Geologiske Undersokelse, Bulletin 432, p. 51-53.

Pojeta, John, Jr., 1997

Claudeonychia babini nov. gen. et nov. sp. Of Ordovician ambonychiid pelecypods from Cincinnati, Ohio, U.S.A.: Geobios, Special Memoir 20, p. 433-436.

Pojeta, John, Jr., 1997

The U.S. Geological Survey Branch of Paleontology and Stratigraphy: National Park Service, Proceedings of the Fourth Conference on Fossil Resources, 1994, "Partners is Paleontology," p. 159-163 in Johnston, Margaret and McChristal, James, U.S. Dept. of the Interior, National Park Service, Florissant Fossil Beds National Monument, National Resources Report NPS/NRFLFO/NRR-97/01.

Powell, C. L., II, 1997

A record of the inarticulate Brachiopod genus Glottidia in the ancestral Gulf of California: U. S. Geological Survey Open-file Report 97-538: p. 1-5.

Quinn, J. P., Point, D. J., Hillhouse, J. W., and Powell, C. L., II, 1997

Quaternary chronostratigraphic constraints on deformation and blind thrust faulting, northern Los Angeles Basin: in, Quinn, J. P., ed., Collaborative research (Gorian and Associates, Inc. and United States Geological Survey): Geological investigations to evaluate the Wilshire fault blind thrust model. Final Technical Report, 1434-95-G-2523 (Program Element II, Component II.5): 31 p.

Scott, T.M., Means, G.H., and Brewster-Wingard, G.L., 1997

Progress Report on Sediment Analyses at Selected Faunal Monitoring Sites in North-central and Northeastern Florida Bay: U.S. Geological Survey Open-File Report 97-534, 50 p.

Self-Trail, J.M., and Bybell, L.M., 1997

Calcareous nannofossil biostratigraphy of the SCDNR testhole C-15, Jasper County, South Carolina: U.S. Geological Survey Open-File Report 97-155, 2 sheets.

Weems, R.E., and Bachman, J.M., 1997

Cretaceous anuran and dinosaur footprints from the Patuxent Formation of Virginia: Proceedings of the Biological Society of Washington, v. 110, no. 1, p. 1-17.

Weems, R.E., Lemon, E.M., Jr., and Chirico, P.G., 1997

Digital geology and topography of the Charleston quadrangle, Charleston and Berkeley counties, South Carolina: U.S. Geological Survey Open-File Report 97-531 (CD-R74 disc).

Weems, R.E., Lemon, E.M., Jr., and Nelson, M.S., 1997

Geologic Map of the Pringletown, Ridgeville, Summerville, and Summerville NW quadrangles, SC, with text (1:24,000).

Weems, R.E., and Lewis, W.C., 1997

Detailed geologic sections from auger holes in northeastern Charleston County, South Carolina, east of 79^o45' west longitude: U.S. Geological Survey Open-File Report 97-712, 82 p.

Weems, R.E., and Olsen, P.E., 1997

Synthesis and revision of Groups within the Newark Supergroup: Geological Society of America Bulletin, v. 108, no. 2, p. 195-209.

Willard, D.A., 1997

Plio-Pleistocene pollen assemblages from the Yermak Plateau, Arctic Ocean: ODP Sites 910 and 911. Proceedings of the Ocean Drilling Program, Scientific Results, v. 151, p. 297-305.

Willard, D.A., 1997

Pollen census data from southern Florida: sites along a nutrient gradient in Water Conservation Area 2A: U.S. Geological Survey Open-file Report, v. 97-497, p. 1-23.

Willard, D.A., Brewster-Wingard, G.L., Fellman, C., and Ishman, S.E., 1997

Paleontological Data from Mud Creek Core 1, southern Florida`: U.S. Geological Survey Open-file Report, v. 97-736, p. 1-18.

Willard, D.A., and Holmes, C.W., 1997

Pollen and geochronological data from South Florida: Taylor Creek Site 2. U.S. Geological Survey Open-File Report 97-35, 28 pp.

Willard, D.A., and Weimer, L.M., 1997

Palynological census data from surface samples in South Florida: U.S. Geological Survey Open-File Report 97-867, p. 1-12.

Brewster-Wingard, G.L., 1996

Ecosystem History of Florida Bay: U.S. Geological Survey Fact Sheet, FS-144-96.

Brewster-Wingard, G.L., Ishman, S.E., Edwards, L.E., and Willard, D.A., 1996

Preliminary report on the distribution of modern fauna and flora at selected sites in north-central and north-eastern Florida Bay: U.S. Geological Survey Open-File Report 96-732, 34 p.

Clarke, J.S., Falls, W.F., Edwards, L.E., Frederiksen, N.O., Bybell, L.M., Gibson, T.G., Gohn, G.S., Fleming, Farley, 1996

Hydrogeologic data and aquifer interconnection in a multi-aquifer system in coastal plain sediments near Millhaven, Screven County, Georgia, 1991-1995: Georgia Geological Survey Information Circular 99, 43 p.

Culver, S.J., Repetski, J.E., Pojeta, John, Jr., and Hunt, David, 1996

Early and Middle (?) Cambrian metazoan and protistan fossils from West Africa: Journal of Paleontology, v. 70, p. 1-6.

Dowsett, H. J., and Willard, D.A., 1996

Southeast Atlantic marine and terrestrial response to middle Pliocene climate change. Marine Micropaleontology, v. 27, p. 181-93.

Dowsett, H.J. and Ishman, S.E., 1996

Middle Pliocene planktonic and benthic foraminifers from the subarctic North Pacific: Sites 883 and 887. Proceedings of the Ocean Drilling Program, v. 145, p. 141-156.

Edwards, L.E., and Guex, Jean, 1996

Analytical biostratigraphy and correlation, in Jansonius, J., and McGregor, D.C., eds., Palynology: principles and applications, American Association of Stratigraphic Palynologists Foundation, v. 3, p. 985-1009.

Edwards, L.E., and Owen, D.E., 1996

North American Commission on Stratigraphic Nomenclature, Note 61: Records of Stratigraphic Commission, 1991-1992: American Association of Petroleum Geologists, Bulletin, v. 80, no. 7, p. 1156-1159.

Frederiksen, N.O., 1996

Uppermost Cretaceous and Tertiary spore/pollen biostratigraphy, in Jansonius, J., and McGregor, D.C., eds., Palynology: principles and applications: American Association of Stratigraphic Palynologists Foundation, v. 2, p. 831-841.

Frederiksen, N.O., 1996

Introduction to Chapter 29, Vegetation history, in Jansonius, J., and McGregor, D. C., eds., Palynology: principles and applications: American Association of Stratigraphic Palynologists Foundation, v. 3, p. 1129-1131.

Frederiksen, N.O., Sheehan, T.P., Ager, T.A., Collett, T.S., Fouch, T.D., Franczyk, K.J., and Johnsson, Mark, 1996

Palynomorph biostratigraphy of Upper Cretaceous to Eocene samples from the Sagavanirktok Formation in its type region, North Slope of Alaska: U.S. Geological Survey Open-File Report 96-84, 44 p.

Gohn, G.S., Brewster-Wingard, G.L., Cronin, T.M., Edwards, L.E., Gibson, T.G., Rubin, M. and Willard, D.A., 1996

Neogene and Quaternary geology of a stratigraphic test hole on Horn Island, Mississippi Sound: U.S. Geological Survey Open-File Report 96-20A and B, 23 p. | Part A PDF format (298 KB) |

Harrison, R.W., Orndorff, R.C., and Weems, R.E., 1996

Geology of the Fort Leonard Wood Military Reservation and adjacent areas, south-central Missouri; with contributions on Quaternary terraces by Paul E. Albertson, Dennis Mienert, and Grant Butler: U.S. Geological Survey Open-File Report OFR 96-60, 255 p., 9 pls.

Ishman, S.E., 1996

A benthic faunal record of mid-Gauss (3.15-2.85 Ma) deep water change in the North Atlantic. Marine Micropaleontology, 27, p. 165-180.

Ishman, S.E., Brewster-Wingard, G.L., Willard, D.A., Cronin, T.M., Edwards, L.E., and Holmes, C.W., 1996

Preliminary paleontologic report on Core T-24, Little Madeira Bay, Florida: U.S. Geological Survey Open-File Report 96-543, 27 pp.

Ishman S.E., and Foley, Kevin, 1996

Modern benthic foraminifer distribution in the Canada Basin, western Arctic Ocean. Micropaleontology, 42, p. 206-220.

Ishman, S.E., Polyak, L. and Poore, R.Z., 1996

An expanded record of Quaternary oceanographic change: Amerasian Arctic Ocean. Geology, 24, p. 139-142.

Leeth, D.C., Falls, W.F., Edwards, L.E., Frederiksen, N.O., and Fleming, R.F., 1996

Geologic, hydrologic, and water-chemistry data for a multi-aquifer system in Coastal Plain sediments near Girard, Burke County, Georgia, 1991-95: Georgia Geologic Survey Information Circular 100, p.1-26.

Leventer, A., Domack, E.W., Ishman, S.E., Brachfeld, S., McClennen, C.E., and Manley, P., 1996

Productivity cycles of 200-300 years in the Antarctic Peninsula region: Understanding linkages among the sun, atmosphere, oceans, sea ice, and biota. Geological Society of America Bulletin, 108, p. 1626-1644.

Oliver, W.A., Jr., 1996

Oligins and relationships of Paleozoic coral groups and the origin of the Schleractinia: in Stanley, G.D., Jr., ed., Biology and paleobiology of corals: Paleontological Society Papers, v. 1, p. 107-134.

Oliver, W.A., Jr., Sorauf, J.E., and Brett, C.E., 1996

A unique occurrence of Endophyllum (rugose coral: Devonian) in eastern North America: an ecological and biogeographical puzzle: Journal of Paleontology, v. 70, no. 1, p. 46-56.

Self-Trail, J.M., and Gohn, G.S., 1996

Biostratigraphic data for the Cretaceous marine sediments in the USGS-St. George No. 1 core (DOR-211), Dorchester County, South Carolina: U.S. Geological Survey

Weems, R.E., and Blodgett, R.B., 1996

The pliosaurid Megalneusaurus; a newly recognized occurrence in the Upper Jurassic Naknek Formation of the Alaska Peninsula: Contributions to Alaska Geology, U.S. Geological Survey Bulletin 2152, p. 169-176.

Weems, R.E., and Lemon, E.M., Jr., 1996

Geology of the Clubhouse Crossroads and Osborn quadrangles, Charleston and Dorchester Counties, SC: U.S. Geological Survey Map I-2491 (1:24,000) with text.

Weems, R.E., Powars, D.S., and Mixon, R.B., 1996

Geology of the Supply quadrangle, Caroline and Essex counties, Virginia: U.S. Geological Survey Map GQ-1769 (1:24,000) with text.

Willard, D.A., 1996

Ecosystem history of terrestrial and freshwater ecosystems of southern Florida. U.S. Geological Survey Fact Sheet FS-146-96.

Bybell, L.M., and Self-Trail, J.M., 1995

Evolutionary, biostratigraphic, and taxonomic study of calcareous nannofossils from a continuous Paleocene-Eocene boundary section in New Jersey: U.S. Geological Survey Professional Paper 1554, 113 p.

Bybell, L.M., Self-Trail, J.M., and Gibson, T.G., 1995

Cenozoic calcareous nannofossil biostratigraphy of the Dover Je32-04 Drillhole, Kent County, Delaware: U.S. Geological Survey Open-File Report 95-478, 20 p.

Domack, E.W., Ishman, S.E., Stein, A.B., McClennen, C.E. and Jull, A.J.T., 1995

Late Holocene advance of the Muller Ice shelf, Antarctic Peninsula: Sedimentologic, geochemical and paleontologic evidence.Antarctic Science, 7, p. 159-170.

Edwards, L.E., 1995

Graphic correlation: some guidelines on theory and practice and how they relate to reality: SEPM Special Publication No. 53, p. 45-50.

Frederiksen, N.O., 1995

Differing Eocene floral histories in southeastern North America and western Europe: Influence of paleogeography: Historical Biology, v. 10, p. 13-23.

Frederiksen, N.O., 1995

Palynomorph distributions in the Rincon Shale (lower Miocene) of the Tajiguas landfill section, Santa Barbara County, California: U.S. Geological Survey Open-File Report 95-265, 19 p.

Frederiksen, N.O., and Warwick, P.D., 1995

Palynology of Paleocene lignite beds and associated detrital strata from Louisiana and Mississippi: U.S. Geological Survey Open-File Report 95-208, 22 p.

Gibson, T.G., and Bybell, L.M., 1995

Sedimentary patterns across the Paleocene-Eocene boundary in the Atlantic and Gulf Coastal Plains of the United States: Geologie, v. 103, no. 3-4, p. 237-265.

Hughes, L.L., Neuman, R.B., Borns, H.W., Jr., and Kelley, J.T., 1995

A Maine geological sketchbook: Maine Naturalist, v. 3, p. 61-80.

Litwin, R.J., Weems, R.E., and Holtz, T.R., Jr., 1995

Dinosaurs: Facts and Fiction: U.S. Geological Survey, General Interest Publications of the U.S. Geological Survey, U.S. Government Printing Office 1995, O-164-932.

McCartan, Lucy, Weedman, S.D., Wingard, G.L., Edwards, L.E., Sugarman, P.J., Feigenson, M.D., Buursink, M.L., and Libarkin, J.C., 1995

Age and diagenesis of the Upper Floridan aquifer and the intermediate aquifer system in southwestern Florida: U.S. Geological Survey, Bulletin B-2122, 62ms. pp., 6 figs.

Nowlan, G.S., and Neuman, R.B., 1995

Paleontological contributions to Paleozoic paleogeographic and tectonic reconstructions of the Appalachians, in Williams, Harold, ed., Geology of the Appalachian/Caledonian orogen in Candad and Greenland: Geological Survey of Canada, Geology of Canada, no. 6 and Geological Society of America, The Geology of North America, v. F-1, p. 815-842.

Oliver, W.A., Jr., Pedder, A.E.H., Weiland, R.J., and Quarles van Ufford, A., 1995

Middle Paleozoic corals from the southern slope of the Central Ranges of Irian Jaya, Indonesia: Alcheringa, v. 19 (1), p. 1-15.

Pojeta, John, Jr., 1995

Collecting fossils: Keynote address for the 12th meeting of the Geological Association of New Jersey, in Contributions to the paleontology of New Jersey, Baker, John, ed., v. 12, p. 6-13.

Pojeta, John, Jr., and Johnson, Ralph, 1995

Parastirpulina sohli: a new Cretaceous clavagellid pelecypod, in Contributions to the paleontology of New Jersey, Geological Association of New Jersey, Baker, John, ed., v. 12, p. 14-23.

Powell, C. L., II, 1995

Paleontology and significance of the Imperial Formation at Garnet Hill, Riverside County, California: U. S. Geological Survey Open-file Report 95-489: p. 1-10.

Powell, C. L., II, 1995

Preliminary report on the Echinodermata from the Miocene and Pliocene of the Coyote Mountains, southern California: in, Remeika, P. and Sturz, A., eds., Paleontology and geology of the western Salton Trough detachment, Anza-Borrego Desert State Park, California (Field trip guidebook and volume for the 1995 San Diego Association of Geologist’s field trip to Anza-Borrego Desert State Park), 1: 55-63.

Self-Trail, J.M., and Bybell, L.M., 1995

Cretaceous and Paleogene calcareous nannofossil biostratigraphy of New Jersey, in Contributions to the Paleontology of New Jersey, Geological Association of New Jersey, Baker, John (ed.), v. 12, p. 1-38.

Weedman, S.D., Scott, T.M., Edwards, L.E., Brewster-Wingard, G.L., Libarkin, J.C., 1995

Preliminary analysis of integrated stratigraphic data from the Phred corehole, Indian River County, Florida: U.S. Geological Survey Open-File Report 95-0824, 63 p.

Willard, D.A., DiMichele, W.A., Hower, J.C., Eggert, D.L., and Rexroad, C.G., 1995

Paleoecology of the Springfield Coal Member (Middle Pennsylvanian, Illinois Basin) near the Leslie Cemetery paleochannel, southwestern Indiana: International Journal of Coal Geology, v. 27, p. 59-98.

Willard, D.A., and Wingard, G.L., 1995

South Florida Ecosystems: Changes through time: U.S. Geological Survey Fact Sheet FS-171-95.

Williams, S.H., Harper, D.A.T., Neuman, R.B., Boyce, W.D., and MacNiocaill, D., 1995 [1996]

Lower Paleozoic fossils from Newfoundland and their importance in understanding the history of the Iapetus Ocean, in Hibbard, J.P., van Staal, C.R., and Cawood, P.A., eds., Current perspectives in the Appalachian Caledonian orogen: Geological Association of Canada Special Paper 41, p. 115-126.

Wingard, G.L., Ishman, S.E., Cronin, T.M., Edwards, L.E., Willard, D.A., and Halley, R.B., 1995

Preliminary analysis of down-core biotic assemblages: Bob Allen Keys, Everglades National Park, Florida Bay. U.S. Geological Survey Open-File Report 95-628, 35 pp.

Bybell, L.M., 1994

Calcareous Nannofossil Computer Database: U.S. Geological Survey Open-File Report 94-435, compressed onto 2 high-density computer disks.

Bybell, L.M., and Gibson, T.G., 1994

Paleogene stratigraphy of the Putneys Mill, New Kent County, Virginia, Corehole: U.S. Geological Survey Open-File Report 94-217, p. 1-34.

Clarke, J.S., Falls, W.F., Edwards, L.E., Frederiksen, N.O., Bybell, L.M., Gibson, T.G., and Litwin, R.L., 1994

Geologic, hydrologic, and water-quality data for a multi-aquifer system in Coastal Plain sediments near Millers Pond, Burke County, Georgia: Georgia Geologic Survey Information Circular 96, p.1-34.

Dowsett, H.J., Thompson, R.S., Barron, J.A., Cronin, T.M., Ishman, S.E., Poore, R.Z., Willard, D.A., and Holtz, T.R., Jr., 1994

Paleoclimatic reconstruction of a warmer earth: PRISM Middle Pliocene Northern Hemisphere synthesis. Global and Planetary Change, 9 (3/4), p. 169-195.

Drake, A.A., Jr., Froelich, A.J., Weems, R.E., and Lee, K.Y., 1994

Geologic Map of the Manassas quadrangle, Fairfax and Prince William Counties, VA, with text (1:24,000): U.S. Geological Survey Map GQ-1732.

Edwards, L.E., and Wicander, E.R., 1994

Palynology: Geotimes, v. 40, no. 2, p. 26-27.

Frederiksen, N.O., 1994

Paleocene floral diversities and turnover events in eastern North America and their relation to diversity models: Review of Palaeobotany and Palynology, v. 82, p. 225-238.

Frederiksen, N.O., 1994

Middle and late Paleocene pollen from Pakistan: Palynology, v. 18, p. 91-137.

Frederiksen, N.O., Edwards, L.E., Fouch, T.D., Carter, L.D., and Collett, T.S., 1994

Palynomorph biostratigraphy of Eocene samples from the Sagavanirktok Formation at Franklin Bluffs, North Slope of Alaska: U.S. Geological Survey, Open-File Report 94-653.

Gibson, T.G., and Bybell, L.M., 1994

Paleogene stratigraphy of Solomons Island, Maryland Corehole: U.S. Geological Survey Open-File Report 94-708, p. 1-35.

McLaughlin, R.J., Sliter, W.V., Frederiksen, N.O., Harbert, W.P., and McCulloch, D.S., 1994

Plate motions recorded in tectonostratigraphic terranes of the Franciscan complex and evolution of the Mendocino triple junction, northwestern California: U.S. Geological Survey Bulletin 1997, 60 p.

Neuman, R.B., 1994

The core of the Weeksboro-Lunksoos Lake anticline, and the Ordovician, Silurian, and Devonian rocks on its northwest flank, in Hanson, L.S., ed., Guidebook to field trips in north-central Maine: New England Intercollegiate Geological Conference 86th, Millinocket, Maine: Dubuque, Iowa, Wm. C. Brown Publishers, p. 147-157.

Neuman, R.B., 1994

Late Ordovician (Ashgillian) Foliomena fauna brachiopods from northeastern Maine, U.S.A.: Journal of Paleontology, v. 68, p. 1218-1234.

Neuman, R.B., Harper, D.A.T., and van Staal, C.R., 1994

Discussion on a reassessment of the early Ordovician 'Celtic' brachiopod province: Journal of the Geological Society, London, v. 151, p. 891-892.

Neuman, R.B., and Rankin, D.W., 1994

Bedrock geology of the Shin Pond-Traveler Mountain region, in Hanson, L.S., ed., Guidebook to field trips in north-central Maine: New England Intercollegiate Geological Conference 86th, Millinocket, Maine: Dubuque, Iowa, Wm. C. Brown Publishers, p. 123-133.

Oliver, W.A., Jr., and Hecht, W.S., 1994

Well preserved favositid corals in the Oriskany Sandsstone (Lower Devonian) of New York: New York State Museum, Bulletin 481, p. 265-287, 9 pls.

Oliver, W.A., Jr., and Pedder, A.E.H., 1994

Crises in the Devonian history of the rugose corals: Paleobiology, v. 20(2), p. 178-190.

Oliver, W.A., Jr., and Sorauf, J.E., 1994

Branching Heliophyllum (Devonian reugose corals) from New York and Ohio: Journal of Paleontologyu, v. 68 (6), p. 1183-1201, 8 pls.

Pojeta, John, Jr., and Edwards, L.E., 1994

Fossils Through Time. U.S. Geological Survey General Information Publication, 1 sheet.

Poore, R.Z., Ishman, S., Phillips, L., and McNeil, D., 1994

Quaternary stratigraphy and paleoceanography of the Canada Basin, western Arctic Ocean. U.S. Geological Survey Bulletin 2080.

Powell, C. L., II, 1994

Molluscan evidence for a late Pleistocene sea level lowstand from Monterey Bay, central California: The Veliger, v. 37 no. 1, p. 69-80. | Online version |

Tucker, A. B., Feldmann, R. M., Powell, C. L., II, 1994

A new late Miocene crab, Speocarcinus berglundi n. sp. (Decapoda: Brachyura), from the Imperial Formation (late Miocene to late Pliocene) of Riverside County, southern California: Journal of Paleontology, v. 68, p. 4, p. 800-807.

Willard, D.A., 1994

Palynological record from the North Atlantic region at 3 Ma: vegetational distribution during a period of global warmth: Review of Palaeobotany and Palynology, v. 83, p. 275-297.

Wingard, G.L., Weedman, S.D., Scott, T.M., Edwards, L.E., and Green, R.C., 1994

Preliminary analysis of integrated stratigraphic data from the South Venice corehole, Sarasota County, Florida: U.S. Geological Survey Open-File Report 95-3, 129 p.

Bybell, L.M., and Self-Trail, J.M., 1993

Calcareous nannofossils from Paleogene deposits in the Salt Range, Pakistan: Geological Survey of Pakistan Project Report (IR)PK-109, Potwar Regional Framework Assessment Studies, Pakistan, edited by P.D. Warwick and B.R. Wardlaw, 31 p.

Domack, E. W. and Ishman, S. E., 1993

Oceanographic and physiographic controls on modern sedimentation within Antarctic fjords. Geological Society of America Bulletin 105, p. 1175-1189.

Easton, R.M., Edwards, L.E., Jordan, R.R., and Owen, D.E., 1993

Stratigraphic regulation and guidance: A critique of current tendencies in stratigraphic codes and guides: Discussion: Geological Society of America, Bulletin, v. 105, no. 8, p. 1135-1136.

Edwards, L.E., 1993

Paleocene and Eocene dinocysts from the Salt Range, Punjab Province, Pakistan, in Warwick, P.D., and Wardlaw, B.R., Potwar regional framework assessment studies, Pakistan: Geological Survey of Pakistan, Project Report (IR)PK-109: 34 pp., 3 figs., 2 tables, 2 plates.

Edwards, L.E., 1993

Note 60 -- Application for amendment of North American Stratigraphic Code to clarify relation of allostratigraphic and lithostratigraphic units: American Association of Petroleum Geologists, Bulletin, v.77, no. 5, p. 909.

Edwards, L.E., and Pojeta, John Jr., 1993

Fossils, Rocks, and Time. U.S. Geological Survey General Information Publication, 25 pp.

Gibson, T.G., Bybell, L.M., and Owens, J.P., 1993

Latest Paleocene lithologic and biotic events in neritic deposits from southwestern New Jersey: Paleoceanography, v. 8, no. 4, p. 495-514.

Litwin, R.J., Frederiksen, N.O., Adam, D.P., Andrle, V.A.S., and Sheehan, T.P., 1993

Continental-marine correlation of Late Pleistocene climate change: Census of palynomorphs from core OL-92, Owens Lake, California, in Smith, G.I., and Bischoff, J.L., eds., Core OL-92 from Owens Lake, southeast California: U.S. Geological Survey Open-File Report 93-683, p. 333-391.

Litwin, R.J., Smoot, J.P., and Weems, R.E., 1993

Froelichsporites gen. nov. -- A biostratigraphic marker palynomorph of Upper Triassic continental strata in the conterminous U.S.: Palynology, v. 17, p. 157-168.

Oliver, W.A., Jr., 1993

The Siphonophrentidae (Rugose corals; Devonian) of eastern North America: :U.S. Geological Survey Bulletin 2024-B, Shorter Contributions to Paleontology and Stratigraphy, p. B1-B32, 22 plates.

Oliver, W.A., Jr., 1993

Oligins and relationships of Devonian Rugosa endemic to the Eastern Americas realm: Courier, Forschungsinstitut Senckenberg, no. 164, p. 131-140.

Poag, C.W., Poppe, L.J., Folger, D.W., Powars, D.S., Mixon, R.B., Edwards, L.E., and Bruce, Scott, 1993

Reply: Geology, v. 21, no. 5, p. 478-479.

Powell, C. L., II, 1993

Macrofossils from the Imperial Formation in the Ocotillo Wells State Vehicle Recreation area, Imperial and San Diego counties, California: U. S. Geological Survey Open-file Report 93-562, p. 1-7.

Willard, D.A., Cronin, T.M., Ishman, S.E., and Litwin, R.J., 1993

Terrestrial and marine records of climatic and environmental changes during the Pliocene in subtropical Florida. Geology 21, p. 679-682.

Weems, R.E., 1993

Stratigraphic distribution and bibliography of fossil fish, amphibians, and reptiles from Virginia: U.S. Geological Survey Open-File Report Number 93-222, 49 p.

Weems, R.E., and Kimmel, P.G., 1993

Upper Triassic reptile footprints and a coelacanth scale from the Culpeper basin, Virginia: Proceedings of the Biological Society of Washington, v. 106, no. 2, p. 390-401.

Weems, R.E., and Lemon, E.M., Jr., 1993

Geologic map of the Cainhoy, Charleston, Fort Moultrie, and North Charleston quadrangles, S.C., with text (1:24,000): U.S. Geological Survey Map I-1935.

Weems, R.E., Powars, D.S., and Clark, A.M., 1993

Detailed sections from auger holes in the Bowling Green, Penola, Sparta, and Supply quadrangles, Virginia: U.S. Geological Survey Open-File Report 93-581, 58 p.

Willard, D.A., 1993

Pliocene palynomorph census data from the Pinecrest Beds (Tamiami Formation) in Quality Aggregates Phase 6 pit, southwestern Florida: U.S. Geological Survey Open-file Report, v. 93-563, 10 p.

Willard, D.A., 1993

Vegetational patterns in the Springfield Coal (Middle Pennsylvanian, Illinois Basin): Comparison of miospore and coal-ball records, in Cecil, C. B., and Cobb, J., eds., Modern and Ancient Coal-Forming Environments: Geological Society of America Special Paper , v. 286, p. 139-152.

Willard, D.A., Cronin, T.M., Ishman, S.E., and Litwin, R.J., 1993

Terrestrial and marine records of climate and environmental change during the Pliocene in subtropical Florida: Geology, v. 21, p. 679-682.

Willard, D.A., and Phillips, T. L., 1993

Paleobotany and palynology of the Bristol Hill Coal Member (Bond Formation) and Friendsville Coal Member (Mattoon Formation) of the Illinois Basin (Upper Pennsylvanian): Palaios, v. 8, p. 574-586.

Wingard, G.L., 1993

A detailed taxonomy of Upper Cretaceous-Lower Tertiary Crassatellidae, in the Eastern United States: An example of the nature of extinction at the boundary: U.S. Geological Survey Professional Paper 1535, 176 p., 22 pls.

Bateman, R.M., DiMichele, W.A., and Willard, D.A., 1992

Experimental cladistic analyses of anatomically preserved tree-lycopsids from the Carboniferous of Euramerica: Annals of the Missouri Botanical Garden, v. 79, p. 500-559.

Bybell, L.M., 1992

Calcareous nannofossils - their use in interpreting Paleocene and Eocene geologic events in New Jersey, in Gohn, G.S., ed., Proceedings of the 1988 U.S. Geological Survey Workshop on the Geology and Geohydrology of the Atlantic Coastal Plain: U.S. Geological Survey Circular 1059, p. 9-13.

Coates, A.G., Jackson, J.B.C., Collins, L.S., Cronin, T.M., Dowsett, H.J., Bybell, L.M., Jung, Peter, and Obando, J.A., 1992

Closure of the Isthmus of Panama: The nearshore record of Costa Rica and western Panama: Geological Society of America Bulletin, v. 104, p. 814-828.

Edwards, L. E., 1992

Dinoflagellates, in Lipps, J. H., ed., Fossil Prokaryotes and Protists: Blackwell Scientific Publications, Ltd., p. 105-127.

Edwards, L.E., 1992

New semiquantitative (paleo) temperature estimates using dinoflagellate cysts, an example form the North Atlantic Ocean, in Head, M.J., and Wrenn, J.H., eds., Neogene-Holocene dinoflagellate cysts: American Association of Stratigraphic Palynologists Foundation, Salt Lake City, p. 69-87.

Edwards, L.E., 1992

Dynamics of upper Paleocene deposits in the Salisbury Embayment, Virginia and Maryland, in Gohn, G.S., ed., Proceedings of the 1988 U.S. Geological Survey Workshop on the Geology and Geohydrology of the Atlantic Coastal Plain: U.S. Geological Survey Circular 1059, p. 57-59.

Edwards, L.E., and Andrle, V.A.S., 1992

Distribution of selected dinoflagellate cysts in modern marine sediments in Head, M.J., and Wrenn, J.H., eds., Neogene-Holocene dinoflagellate cysts: American Association of Stratigraphic Palynologists Foundation, Salt Lake City, p. 259-288.

Frederiksen, N.O., 1992

Palynology of Mesozoic and lower Tertiary samples from northern, central, and southern Pakistan: U.S. Geological Survey Open-File Report 92-215, 13 p.

Ishman S. E., and Rieck, H. J., 1992

A Late Neogene Antarctic glacio-eustatic record, Victoria Land Basin margin, Antarctica: in J.P. Kennett and J. Barron (eds), Antarctic Research Series, 56, p. 327-248.

Neuman, R.B., and Harper, D.A.T., 1992

Paleogeographic significance of Arenig-Llanvirn Toquima Table Head and Celtic brachiopod assemblages, in Webby, B.D., and Laurie, J.R., eds., Global perspectives on Ordovician geology, International Symposium on the Ordovician System 6th, 15-19 July, 1991, Sydney, Australia: Rotterdam, The Netherlands and Brookfield, Vermont, A.A. Balkema, p. 241-254.

Poag, C.W., Poppe, L.J., Folger, D.W., Powars, D.S., Mixon, R.B., Edwards, L.E., and Bruce, Scott, 1992

Deep Sea Drilling Project Site 612 bolide event: New evidence of a late Eocene impact-wave deposit and a possible impact site, U.S. east coast: Geology, v. 20, p. 771-774.

Pojeta, John, Jr., 1992

A selected bibliographic introduction to the Ordovician mollusks and other fossils of the tri-state area of Ohio, Kentucky, and Indiana: MAPS Digest, v. 15, p. 1-5.

Webers, G.F., Pojeta, John, Jr., and Yochelson, E.L., 1992

Cambrian Mollusca from the Minaret Formation, Ellsworth Mountains, West Antarctica, in Webers, Craddock, and Splettstoeser, eds., Geology and paleontology of the Ellsworth Mountains, Antarctica, AGSA Memoir 170, p. 181-248.

Weems, R.E., 1992

The "terminal Triassic catastrophic extinction event" in perspective: review of Carboniferous through Early Jurassic extinction patterns: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 94, no. 1-4, p. 1-29.

Weems, R.E., 1992

A re-evaluation of the taxonomy of Newark Supergroup Saurischian dinosaur tracks, using extensive statistical data from a recently exposed track site near Culpeper, Virginia: in Palmer Sweet (ed.), 26th Forum on the geology of industrial minerals, Virginia Division of Mineral Resources Publication 119, p. 113-128.

Willard, D.A., 1992

Late Pliocene pollen assemblages from Ocean Drilling Project Hole 646B: census data and paleoclimatic estimates: U. S. Geological Survey Open-File Report 92-405, 13 p.

Willard, D.A., 1992

Early Virgilian palynofloras from the Kinney Quarry, Manzanita Mountains, New Mexico: New Mexico Bureau of Mines and Mineral Resources Bulletin, v. 138, p. 49-60.

Wilson, J.M., Fleck, W.B., McCartan, Lucy, Bybell, L.M., Andrews, G.W., and Brenner, G.J., 1992

Stratigraphic and structural controls on ground-water flow in the coastal plain aquifers, north-central Charles County, Maryland, in Gohn, G.S., ed., Proceedings of the 1988 U.S. Geological Survey Workshop on the Geology and Geohydrology of the Atlantic Coastal Plain: U.S. Geological Survey Circular 1059, p. 103-107.

Bybell, L.M., and Gibson, T.G., 1991

Calcareous nannofossils and foraminifers from Paleocene and Eocene strata in Maryland and Virginia: In Paleocene-Eocene boundary sedimentation in the Potomac River Valley, Virginia and Maryland: International Geological Correlation Programme Project 308 Field Trip Guidebook, p. 15-29.

Bybell, L.M., and Poore, R.Z., 1991

Calcareous nannofossils and planktic foraminifers from Enewetak Atoll, Marshall Islands, western Pacific Ocean: U.S. Geological Survey Professional Paper 1513-C, p. C1-C21.

Cronin, T.M., Bybell, L.M., Brouwers, E.M., Gibson, T.G., Margerum, Richard, and Poore, R.Z., 1991

Neogene biostratigraphy and paleoenvironments of Enewetak Atoll: Marine Micropaleontology, v. 18, no. 1/2, p. 101-114.

Edwards, L.E., 1991

Quantitative biostratigraphy, in Gilinsky, N.L., and Signor, P.W., eds., Analytical Paleobiology: Short Courses in Paleontology, no. 4, p. 39-58.

Edwards, L.E., 1991

Neogene and Pleistocene dinocysts of the Charleston, South Carolina, region, in Studies related to the Charleston, South Carolina, earthquake of 1886 -- Neogene and Quaternary lithostratigraphy and biostratigraphy: U.S. Geological Survey Professional Paper 1367-E, p. E1-E9, pl. 1-3.

Edwards, L.E., Mudie, P.J., and de Vernal, A., 1991

Pliocene paleoclimatic reconstruction using dinoflagellate cysts: comparison of methods: Quaternary Science Reviews, v. 10, no. 2/3, p. 259-274.

Frederiksen, N.O., 1991

Midwayan (Paleocene) pollen correlations in the eastern United States: Micropaleontology, v. 37, p. 101-123.

Frederiksen, N.O., 1991

Nineteenth Professor Birbal Sahni Memorial Lecture: Rates of floral turnover and diversity change in the fossil record: Palaeobotanist, v. 39, p. 127-139.

Frederiksen, N.O., 1991

Pollen zonation and correlation of Maastrichtian marine beds and associated strata, Ocean Point dinosaur locality, North Slope, Alaska: U.S. Geological Survey Bulletin 1990-E, 24 p.

Frederiksen, N.O., 1991

Pulses of middle Eocene to earliest Oligocene climatic deterioration in southern California and the Gulf Coast: Palaios, v. 6, p. 564-571.

Frederiksen, N.O., 1991

Age determinations for Eocene formations of the San Diego, California, area, based on pollen data, in Abbott, P. L., and May, J. A., eds., Eocene geologic history San Diego region: Pacific Section SEPM, v. 68, p. 195-200.

Gibson, T.G., and Bybell, L.M., 1991

Potomac River Paleocene and Eocene Stop Descriptions: In Paleocene-Eocene boundary sedimentation in the Potomac River Valley, Virginia and Maryland: International Geological Correlation Programme Project 308 Field Trip Guidebook, p. 85-124.

Gibson, T.G., Bybell, L.M., and Govoni, D.L., 1991

Paleocene and Eocene strata of the central Atlantic Coastal Plain: In Paleocene-Eocene boundary sedimentation in the Potomac River Valley, Virginia and Maryland: International Geological Correlation Programme Project 308 Field Trip Guidebook, p.1-13.

Lajoie, K. R., Ponti, D. J., Powell, C. L., II, Mathieson, S. A., and Sarna-Wojcicki, A. M., 1991

Emergent marine strandlines and associated sediments, coastal California: a record of Quaternary sea-level fluctuations, vertical tectonic movements, climatic changes, and coastal processes: in, Morrison, R. B., ed., Quaternary geology of the Pacific margin; Quaternary nonglacial geology: conterminous U. S. (volume K-2). The Geology of North America. The Geological Society of America (Boulder, Colorado), p. 190-213.

Marincovich, L., Jr., and Powell, C. L., II, 1991

Pliocene and Pleistocene molluscs in marine transgressions of western and northern Alask: Western Society of Malacologists Annual Report, v. 23, p. 10-14.

Oliver, W.A., Jr., and Chlupac, I., 1991

Defining the Devonian: 1979-1989: Lethaia, v. 24, p. 119-122.

Outerbridge, W.F., Frederiksen, N.O., Khan, M.R., Khan, R.A., Qureshi, M.J., Khan, M.Z., Niamatullah, and Khan, S.A., 1991

The Sohnari Formation in southern Pakistan, in Stratigraphic notes, 1989- 90: U.S. Geological Survey Bulletin 1935, p. 27-40.

Sando, W.J., Chapman, R.E., and Edwards, L.E., 1991

A computerized reference file on late Paleozoic coral research, 1683-1989: Fossil Cnidaria & Porifera Newsletter, v. 20, no. 2, p. 44-46.

Sturt, B.A., Ramsay, D.M., and Neuman, R.B., 1991

The Otta Conglomerate, the Vagamo Ophiolite - further indications of early Ordovician orogenesis in the Scandinavian Caledonides: Norsk Geologisk Tidsskrift, v. 71, p. 107-115.

Sugarman, P.J., Owens, J.P., and Bybell, L.M., 1991

Geologic map of the Adelphia and Farmingdale quadrangles, Monmouth and Ocean Counties, New Jersey: New Jersey Geological Survey Map Series 91-1.

Bybell, L.M., 1990

Calcareous nannofossils from Pliocene and Pleistocene deposits in South Carolina: In U.S. Geological Survey, Studies related to the Charleston, South Carolina, Earthquake of 1886--Neogene and Quaternary lithostratigraphy and biostratigraphy: U.S. Geological Survey Professional Paper 1367-B, 13 p.

Edwards, L.E., 1990

Peridinialean dinoflagellate plate patterns, labels and homologies: Review of Palaeobotany and Palynology, v. 65, p. 293-303.

Edwards, L.E., and Andrle, V.A.S., 1990

Dinoflagellate-cyst census data from the seabed samples of Wall and others (1977) and Turon (1984). U.S. Geological Survey Open-File Report 90-613, 43 p.

Miller, K.G., Kent, D.V., Brower, A.N., Bybell, L.M., Feigenson, M.D., Olsson, R.K., and Poore, R.Z., 1990

Eocene-Oligocene sea-level changes on the New Jersey coastal plain linked to the deep-sea record: Geological Society of America Bulletin, v. 102, p. 331-339.

Frederiksen, N.O., 1990

Paleocene(?) and Eocene pollen samples from the general region of the San Jose 2o Sheet, California: U.S. Geological Survey Open-File Report 89-545, 20 p.

Frederiksen, N.O., 1990

Palynological contribution to geologic mapping of upper Paleocene rocks in the Lower Indus coal region, Pakistan: U.S. Geological Survey Open-File Report 90-243, and USGS Project Report (IR)PK-87 to the Geological Survey of Pakistan, 47 p.

Frederiksen, N.O., 1990

Late Cretaceous pollen from the Salinian(?) suspect terrane at Pigeon Point, San Mateo County, California: U.S. Geological Survey Open-File Report 90-523, 18 p.

Nichols, D.J., Fleming, R.F., and Frederiksen, N.O., 1990

Palynological evidence of effects of the terminal Cretaceous event on terrestrial vegetation in western North America, in Kauffman, E.G., and Walliser, O.H., eds., Extinction events in earth history: Lecture Notes in Earth Sciences, v. 30, p. 351-364.

Oliver, W.A., Jr., 1990

Extinctions and migrations of Devonian rugose corals in the Eastern Americas realm: Lethaia, v. 23, p. 167-178.

Pedder, A.E.H., and Oliver, W.A., Jr., 1990

Rugose coral distribution as a test of Devonian paleogeographic models: Geological Society (London) Memoir 12, p. 267-275.

Willard, D.A., 1990

Palynology of the Springfield Coal of the Illinois Basin (Middle Pennsylvanian) with Quantitative Comparison of Spore Floras and Coal-Ball Peats and Implications for Paleoecological Studies: University of Illinois, Urbana-Champaign, Ph.D. dissertation, 216 pp.

Willard, D.A., and Klein, G. deV., 1990

Tectonic subsidence history of the Central Appalachian basin and its influence on Pennsylvanian coal deposition: Southeastern Geology, v. 30, p. 217-239.

Wingard, G.L., and Sohl, N.F., 1990

Revision of the Nucula percrassa Conrad, 1858 group in the Upper Cretaceous of the Gulf and Mid-Atlantic Coastal Plains: an example of bias in the nomenclature: U.S. Geological Survey Bulletin 1881, Shorter Contributions to Paleontology and Stratigraphy, p. D1-D25.

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