5-2-21 Oglesby, Illinois Pennsylvanian Roadcut

[Nimravis]

After seeing @connorp Fossil of the month entry that came from this location, I decided to stop out at this roadcut for a couple hours today. The weather was perfect, high 70’s and like almost every other trip, I had the place to myself. 
 

This cut exposes the Pennsylvanian LaSalle Limestone Member of the Bond Formation and never disappoints, that is if you are looking for brachiopods. Unfortunately, this time I did not find and shark teeth, like I did on my last two recent trips.

 

 

 

 

I did find one of my largest Echinoconchus brachiopods that I have ever found.

 

 

The other usual suspects were also found- Wilkingia terminalis Bivalve, and the following other brachiopods- Lindoproductus cora, Antiquatonia portlockiana, Composita argentia and Neospirifer, an inarticulate brachiopod. I also found a few pieces with nice crystallization.

 

 

 

 

Edited May 3, 2021 by Nimravis

[Tidgy's Dad]

Very nice indeed, Ralph.

That Echinoconchus is a beast! 

[Nimravis]

14 minutes ago, Tidgy's Dad said:

Very nice indeed, Ralph.

That Echinoconchus is a beast! 

Thanks Adam and I agree.

[deutscheben]

That is a mighty big one for sure!

[ROCK-N-ROW]

Hi. What road were you on? I'm trying to find it on Google Earth.

[FossilNerd]

Nice little stop, Ralph. That giant brachiopod is a monster! Thanks for sharing.  

[tombk]

Very nice - and large - finds. What books/references do you use for identification of your brachiopods? 

[connorp]

1 hour ago, tombk said:

Very nice - and large - finds. What books/references do you use for identification of your brachiopods? 

The Pennsylvanian Fossils of North Texas is a great reference for Pennsylvanian fossils IMO. Species might be different between states but there are many genera in common between Pennsylvanian marine deposits around the country.