Crusty_Crab Posted September 9, 2020 Share Posted September 9, 2020 This was found in the Ordovician Platteville Formation near Platteville, Wisconsin. Only a tip was exposed and i thought it might be a trilobite but prepping it further, it looks like just a fragment. My best guess is that its part of the cephalon but its curved and I can't really tell which part it might be from. Any opinions? 1 Link to comment Share on other sites More sharing options...
Kane Posted September 9, 2020 Share Posted September 9, 2020 Indeed it is! I would say the cephalon of a Thaleops sp. 2 ...How to Philosophize with a Hammer Link to comment Share on other sites More sharing options...
FossilDAWG Posted September 9, 2020 Share Posted September 9, 2020 2 minutes ago, Kane said: Indeed it is! I would say the cephalon of a Thaleops sp. Agreed. Don Link to comment Share on other sites More sharing options...
piranha Posted September 9, 2020 Share Posted September 9, 2020 Here is the classic monograph: Amati, L., Westrop, S.R. 2004 A Systematic Revision of Thaleops (Trilobita: Illaenidae) with New Species form the Middle and late Ordovician of Oklahoma and New York. Journal of Systematic Palaeontology, 2(3):207-256 PDF LINK 2 Link to comment Share on other sites More sharing options...
Nautiloid Posted September 9, 2020 Share Posted September 9, 2020 Definitely Thaleops. Nice find! Link to comment Share on other sites More sharing options...
Crusty_Crab Posted September 9, 2020 Author Share Posted September 9, 2020 Thanks for all the responses! I'm kinda bummed that its just a partial cephalon but now I have a goal for next time- a complete one! Wish me luck! Link to comment Share on other sites More sharing options...
Fossildude19 Posted September 9, 2020 Share Posted September 9, 2020 1 hour ago, Crusty_Crab said: Thanks for all the responses! I'm kinda bummed that its just a partial cephalon but now I have a goal for next time- a complete one! Wish me luck! When you realize that many species are only known via parts or sections of fossils, it is more impressive to know you got a complete cephalon. 1 Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 __________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
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