Crinoids Found
No crinoid heads (calyx)
were found and no bottoms (holdfasts) either.
Here's one Dry Dredger's hand full of cinoid stems, though.
Ichnofossils (Trace Fossils) Found
In the trace fossil category, nothing exciting to report.
There were lots of worm burrows as this next picture shows.
This next fossil arrived to my camera from two separate Dry
Dredgers members, at separate times. It looked really interesting and was
irresistible to pick up, and then put down. This is a vertical cross section of
a rock, showing all the layers of a thick section of strata. This is the type of
lithographic specimen geologists photograph to document stratigraphic
layers. Near the top, you can see a Bryozoan, as it encrusted the surface
of the Ordovician Ocean floor. Below it are some holes, perhaps made by soft
bodied worms, that may have been widespread at that time. Each layer in this
rock represents a time in the history of this locality. Our scientist instincts
compelled us to pick it up and learn from it.
Here's an example of a horizontal surface bored by lots of
soft bodied animals.
Minerals Found
Among the minerals found was burrows filled in with Pyrite,
"fools gold". These little nuggets shined when wet, making them
attractive to pick up.
That's all for this month. Join us in person for the October field trip on Oct 28th! If you are not a member but would like to come along, email Bill Heimbrock at billheim@cinci.rr.com
T A B L E O F C O N T E N T S
Page 1: The Site and Collecting
Photos
Page 2: Fossils Found: Cephalopods
Page 3: Fossils Found: Trilobite Flexicalymene
Page 4: Fossils Found: Trilobite Isotelus
Page 5: Fossils Found: Articulate Brachiopods
Page 6: Fossils Found: Inarticulate Brachiopods and Corals
Page 7: Pelecypods and Gastropods
Page 8: Fossils Found: Crinoids and Ichnofossils
Previous Trips to this Site
March 2006
March 2004
October 2003
April 2002
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