Genejockey Posted March 30, 2015 Share Posted March 30, 2015 Hello, I'm new here. I'm primarily a rockhound, but can't pass up fossils if I run into them. I'm also involved with an organization called Science Olympiad and I've been an event supervisor for a number of years for Fossils which has caused me to acquire a working set of fossils for demo and for the Event Competitions. I have a fossil that I'd like an assist on, if possible. It was collected in Lee's Summit, MO, and according to the USGS the limestone in that area is primarily Pennsylvanian. This one puzzles me. I'd like to say jellyfish, but I know that the odds on it being that are almost astronomical. Any other ideas? In this same area I find brachiopods, crinoids, bryozoans (Rhombopora and fenestrate pieces, but have never found Archimedes) and some really cool bivalves of some kind. But I'll have to post further in the thread as it doesn't want to accept multiple photos. Link to comment Share on other sites More sharing options...
Genejockey Posted March 30, 2015 Author Share Posted March 30, 2015 A different perspective. Link to comment Share on other sites More sharing options...
Genejockey Posted March 30, 2015 Author Share Posted March 30, 2015 Really wild purple-red brachiopods that I have no idea what they are. Link to comment Share on other sites More sharing options...
Genejockey Posted March 30, 2015 Author Share Posted March 30, 2015 (edited) And with a piece in the host limestone. Edited March 30, 2015 by Genejockey Link to comment Share on other sites More sharing options...
Genejockey Posted March 30, 2015 Author Share Posted March 30, 2015 Here are two of the neat bivalves I found. I believe I collected them from strata that was higher up than the brachiopod layer, but don't recall for sure. Any help that can be provided is really appreciated. Link to comment Share on other sites More sharing options...
Auspex Posted March 30, 2015 Share Posted March 30, 2015 My first thought on this specimen: is that it might be an impression of an ammonoid. "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
FossilDAWG Posted March 30, 2015 Share Posted March 30, 2015 I agree that the first specimen is an impression of a cephalopod. The brachiopods are some sort of Productoidea, but there are hundreds of genera (and more species, obviously) so it would take a lot of effort to narrow it down further. Don 1 Link to comment Share on other sites More sharing options...
Genejockey Posted March 30, 2015 Author Share Posted March 30, 2015 Thank you! I can see it now that you've pointed it out, and it makes more sense as far as abundance. I did find one badly eroded cephalopod at this location, as well as have heard rumors of a stunning ammonite that is in a piece of limestone used in the dam of this lake location. Next time I'm out in that region I'll have to poke around some more. As for the Productoidea, now I have a name for the kids if they ask, but most don't as it's not on their "list" of things they have to recognize. Link to comment Share on other sites More sharing options...
Missourian Posted April 1, 2015 Share Posted April 1, 2015 (edited) I've collected at that same exposure. It is near the top of the Winterset Limestone (Pennsylvanian). I won't mention the name of the lake.... The cephalopod is Metacoceras. I also see Aviculopecten, Monopteria, and Isogramma (an unusual brachiopod) in your piece. Some of my finds from the site.... Aviculopecten: Isogramma: Edited April 1, 2015 by Missourian 1 Context is critical. Link to comment Share on other sites More sharing options...
Missourian Posted April 1, 2015 Share Posted April 1, 2015 (edited) The purple brachiopods are Juresania. The plate could have come from the Middle Creek Limestone, but I can't be quite sure. Some purple fossils in the Middle Creek: The bivalves are a myalinid of some sort. Edited April 1, 2015 by Missourian 1 Context is critical. Link to comment Share on other sites More sharing options...
Genejockey Posted April 1, 2015 Author Share Posted April 1, 2015 Thank You! I have some casts that I identified as Juresania, but I never would have guessed the purple guys were also Juresania since they seem so compressed. If you go in the direction of the Community College, the hash plates are nicely exposed. I also picked up some calyx pieces there. I grew up in KC, so will definitely be back sooner than later. Link to comment Share on other sites More sharing options...
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