(CATATONIC PROPHYLACTIC) Ugly green slime Ugly green slime with orange spots Earthquakes and volcanoes Volcanoes and earthquakes 505 Myr 425 Myr 360 Myr 325 Myr 280 Myr 230 Myr Accordion Pedestrian Freudian Artesian Pestiferous Obstreperous Seashells More seashells Slimy things Slimy things with tentacles Nasty crawly things Lots of nasty crawly things Torrential rains Thunder and lightning More rain More thunder and lightning Rain, 40 days and 40 nights; oceans form Rain, with intermittent volcanoes 205 Myr 165 Myr 135 Myr Cryptic Styptic Creosote Big warty things Really big warty things Warty things too big; start over Swamps form Hot, with frequent rains; drifting continents Even hotter, with lots of mosquitoes 75 Myr . 39 Myr 28 Myr 12 Myr 1 Myr 25000 yr 15 min (Obscene Uglyscene) Vaseline Listerine Ovaltine Plasticine Recent Very recent Little hairy animals Big hairy animals Animals with silly-looking horns, ridiculous teeth Animals who don't understand about tar pits First homonyms Modern person; first Republicans First computer nerds Cooler, with a 20% chance of comets Windy; small continent warning Cold, with night and morning glaciers Fair inland, patchy fog near the coast Warm and sunny; great weekend for a barbecue Smog alert Freeways upthrust; suburbs form Fast-food chains form
Time BP
ERA/Epoch
Life Forms
Geologic Developments
5000 Myr
ATONAL
Rocks
Mountain ranges upthrust; continents form
3000 Myr
PRECOCIOUS
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ORTHOPEDIC
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METATARSAL
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CRETINOUS
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Shree trews true shees shee trees tree shrews.