connorp Posted May 12, 2020 Share Posted May 12, 2020 Ordovician inverts are not my specialty, and thus I have a few that I would appreciate some help narrowing down the species on. The first three are from the Upper Ordovician Platteville Group (Mifflin Member I think). 1) A large cephalopod section. 2) What I think is a bivalve steinkern. Not sure if a species can be ascertained. 3) A tiny trilo pygidium. 4) This last one is from the Upper Ordovician Maquoketa Group. My guess is Eochonetes? Any thoughts @Tidgy's Dad? Thanks for any help. Link to comment Share on other sites More sharing options...
aek Posted May 12, 2020 Share Posted May 12, 2020 The ceph is probably Endoceras. The pygidium is Walencrinuroides rarus. 6 Link to comment Share on other sites More sharing options...
connorp Posted May 12, 2020 Author Share Posted May 12, 2020 13 hours ago, aek said: The pygidium is Walencrinuroides rarus. That looks like a match. Thanks Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted May 12, 2020 Share Posted May 12, 2020 Yes, that's Eochonetes, maybe E. recedens . Nice. 1 Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
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