connorp Posted August 16, 2019 Share Posted August 16, 2019 Here are a few small bits from the Cincinnatian (Upper Ordovician) roadcut near St Leon, IN, that I’m not sure of the IDs. They were all collected from the butter shale trilobite layer of the Liberty Formation. First is what I think may be part of a crinoid? Not positive. Next, I have no idea. Maybe part of a crinoid. A fragment of a conulariid also crossed my mind. Here is a small brachiopod that I picked up thinking it was Zygospira but is definitely not. I’m guessing this trilobit is Flexicalymene, but I know a few other species of trilobites are found here so I wanted to check. 2 Link to comment Share on other sites More sharing options...
connorp Posted August 16, 2019 Author Share Posted August 16, 2019 Finally a few gastropods. The first two are internal molds so I’m not sure they can be ID’d. #1) #2) #3) 2 Link to comment Share on other sites More sharing options...
FossilDAWG Posted August 16, 2019 Share Posted August 16, 2019 #1 is a crinoid calyx, and #2 is a crinoid anal sac. You can find a good ID guide to Cincinnatian crinoids on the Dry Dredger's web site here. Check out Plicodendrocrinus, but click around to see if anything else fits the bill as well. Don 4 Link to comment Share on other sites More sharing options...
connorp Posted August 16, 2019 Author Share Posted August 16, 2019 1 hour ago, FossilDAWG said: #1 is a crinoid calyx, and #2 is a crinoid anal sac. You can find a good ID guide to Cincinnatian crinoids on the Dry Dredger's web site here. Check out Plicodendrocrinus, but click around to see if anything else fits the bill as well. Don Plicodendrocrinus is definitely a match for the anal sac. Possibly a match for the calyx part. I'm going to try and clean around the few stem segments to get a look at the cross section to confirm. Thanks. Link to comment Share on other sites More sharing options...
Peat Burns Posted August 16, 2019 Share Posted August 16, 2019 2 hours ago, connorp said: Holy **** those are great finds... 1 Link to comment Share on other sites More sharing options...
connorp Posted August 16, 2019 Author Share Posted August 16, 2019 14 minutes ago, Peat Burns said: Holy **** those are great finds... I went there searching for complete trilos, and seem to have found everything but one. Link to comment Share on other sites More sharing options...
Peat Burns Posted August 16, 2019 Share Posted August 16, 2019 15 minutes ago, connorp said: I went there searching for complete trilos, and seem to have found everything but one. I'll trade you a complete trilo or two for those crinoid pieces 2 Link to comment Share on other sites More sharing options...
FossilNerd Posted August 16, 2019 Share Posted August 16, 2019 Very cool! A crinoid calyx is on my bucket list. I think I have a spot that will produce one, but no luck yet. Congrats! 1 The good thing about science is that it's true whether or not you believe in it. -Neil deGrasse Tyson Everyone you will ever meet knows something you don't. -Bill Nye (The Science Guy) Link to comment Share on other sites More sharing options...
FossilDAWG Posted August 17, 2019 Share Posted August 17, 2019 Pete beat me to it. I've searched that trilobite layer a few times and always find a few Flexicalymene but never a crinoid calyx. Don 1 Link to comment Share on other sites More sharing options...
dalmayshun Posted August 17, 2019 Share Posted August 17, 2019 great finds 1 Link to comment Share on other sites More sharing options...
erose Posted August 17, 2019 Share Posted August 17, 2019 The gastropods are most likely: steinkern is Paupospira sp. (formerly Loxoplocus?) and the one with shell is Cyclonema sp. Go here for another great Cincinnatian fossil reference: http://strata.uga.edu/cincy/fauna/fauna.html PS I'm with Peat. I'll trade bugs for lillies... 3 Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted February 5, 2020 Share Posted February 5, 2020 The brachiopod that is not Zygospira is a squashed rhynchonellid. Very nice finds. 1 Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
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