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The World’s Oldest Fossils: The Earliest Evidence for Life on Earth

Monday, March 9, 2009 @ 10:30 AM-12:01 PM

Seminar and Book Signing

Featured Speaker: Bruce L. Stinchcomb, Ph.D., Professor of Geology, ret’d., St. Louis Community College at Florissant Valley and author, The World’s Oldest Fossils

St. Louis sits next to a very ancient part of the Earth’s crust, the Ozark Uplift of southern Missouri and Arkansas. In its oldest rock layers from the mid-Precambrian Period, can be found what are known as stromatolites– structures produced by primitive early life forms such as cyanobacteria and bacteria (prokaryotes). Stromatolites with an age of over three billion years indicate that life on Earth is a very ancient phenomenon. We’ll take a look at these primitive life forms– including the puzzling Vendozoans and the existence of “Snowball Earth,” which preceded them.

Also well represented in the Ozarks are the half billion-year-old rock strata of the Cambrian Period, offering an interesting documentation of the Cambrian Radiation Event, the seemingly sudden and puzzling appearance of more complex animals and plants in the fossil record. Ozark Cambrian rocks record a fauna of peculiar mollusks, extinct arthropods like trilobites and aglaspids, as well as a number of problematic fossils for which the Cambrian Period is famous. Join us as we journey back in time with local geologist, Dr. Bruce Stinchcomb, as he illustrates this “blossoming” of higher life with eye catching visual presentations of many of its fossils.

Dr. Stinchcomb’s richly illustrated book, The Worlds Oldest Fossils, will be available for purchase and signing by the author.

PLEASE NOTE VENUE CHANGE:

World’s Oldest Fossils will be held at The Center of Clayton,
50 Gay Avenue, St. Louis, MO 63105 and is
NOT
at Crestwood Court

FREE to the first 10 registrants, $9 per person thereafter.
OPEN to ALL.

To register call or e-mail Maggie Bauer at 314-533-8586 or mbauer@academyofsciencestl.org

On Science Series co-sponsor:

Details

Date:
Monday, March 9, 2009
Time:
10:30 AM-12:01 PM
Event Category: