Dry Dredgers Field Trip
October 25, 2003
Southeast Indiana

Page 5

Some Fossils Found that day: Trilobites

There were plenty of trilobites found on this trip. There had been enough rain.

Here are some of the Flexicalymene retrorsa trilobites found.

These first pictures are of Flexi's from the "Caesar Creek" layer of the site. All of these trilobites are diminished in size.

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The Flexicalymene retrorsa shown below is accompanied by an attractive bryozoan covered with a star pattern, known as Constellaria florida.


Here's a really nice DOUBLE Rusophycus (borrows of Flexicalymene Trilobites)


The next two pictures are also Flexicalymene retrorsa.

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Our field trip chair, Dan Cooper, found this nice glabella of an Ontopleurid trilobite, probably Acidaspis cincinnatiensis. (or could this be Flexicalymene granulosa in the Richmond??? :-)

Check out these nice finds! The picture includes 4 Flexicalymene's, a crinoid stem and a really nice fragment of the anal sac (center) of the crinoid, Plicodendocrinus casei.

Next Page: More Fossils Found That Day: Crinoids and Corals

October 2003 Field Trip
Table of Contents

Page 1: Introduction and the Search for Trilobites
Page 2: Crinoid Hunting
Page 3: Finding Brachiopods
Page 4: After Collecting
Page 5: Some Fossils Found That Day: Trilobites
Page 6: Some Fossils Found That Day: Crinoids and Corals
Page 7: Other Fossils and Minerals Found That Day

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