Before Man: Prehistoric Life and Geology

of St. Louis City / County, Mo.


Fragment of a Mastodon Tooth.  Mastodons were hairy elephant-like creature that browsed on leaves. This specimen measures approximately 2 by 4 inches. They went extinct around 9000 B.C.  Both bones and teeth of Mastodons have been found in St. Louis. At Mastodon State Park in adjacent Jefferson County, a Paleo-Indian spear point was found associated with one Mastodon skeleton. The above was found in Florissant, Missouri by Scott Williams.  

Giant Ground Sloths Walked in Florissant; Subartic Spruce Forrest Flourished in St. Louis County; Glacial Ice Covered Northern St. Louis County; Tropical Seas Once Covered the Entire Area.; Sharks and Giant Shark-like Creatures Hunted For Prey Across the Metro-Area; A Coral Reef at I-270 and Page Ave.;  From Thousands to Millions of Years Ago....

Table of Contents

(Fossils Listed according to geologic age and depositional environment.)


For Coverage of Early Human Occupation of Regional St. Louis, see section on American Indians.

Click here to learn more about the Eastern Missouri Society for Paleontology
Click on above image to learn more about the
Eastern Missouri Society for Paleontology.


Other excellent websites but not necessarily wholly about St. Louis:

Home: History's Time Portal to Old St.Louis


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This page was last updated Saturday, 21-May-2005 21:56:48 CDT.
This webpage by Scott Williams, Florissant, Missouri. Copyright 1999-2002, All rights reserved.