GavySwan Posted June 25, 2016 Share Posted June 25, 2016 I'm still a beginner, and IDing finds is challenging. Anyone able to help me along? This fossil was found in Craigleith, Ontario. Ordovician shale. I didn't have a ruler with me for scale, but it was about 1.5" long and 1/3" wide at the widest point. My first thought was part of a trilobite but after a closer look at the photos it reminds me more of an Orthoceras. Only I have never seen one this small. Please point me in the right direction! Thanks! P.s. I've also attached a photo of our trilobite find. Pseudogygites latimarginatus? Link to comment Share on other sites More sharing options...
howard_l Posted June 26, 2016 Share Posted June 26, 2016 You are correct it is a Nautiloid Cephalopod. Howard_L http://triloman.wix.com/kentucky-fossils Link to comment Share on other sites More sharing options...
GavySwan Posted June 26, 2016 Author Share Posted June 26, 2016 Wonderful! Thank you! Link to comment Share on other sites More sharing options...
piranha Posted June 26, 2016 Share Posted June 26, 2016 Pseudogygites latimarginatus is correct. Here is an excellent publication with a list of faunal assemblages for Craigleith: LINK Liberty, B.A. (1969) Paleozoic geology of the Lake Simcoe area, Ontario. Geological Survey of Canada Memoir, 355:1-201 Link to comment Share on other sites More sharing options...
GavySwan Posted June 26, 2016 Author Share Posted June 26, 2016 Thank you! Link to comment Share on other sites More sharing options...
Guguita2104 Posted June 26, 2016 Share Posted June 26, 2016 I'm still a beginner, and IDing finds is challenging. Anyone able to help me along? This fossil was found in Craigleith, Ontario. Ordovician shale. I didn't have a ruler with me for scale, but it was about 1.5" long and 1/3" wide at the widest point. My first thought was part of a trilobite but after a closer look at the photos it reminds me more of an Orthoceras. Only I have never seen one this small. Please point me in the right direction! Thanks! P.s. I've also attached a photo of our trilobite find. Pseudogygites latimarginatus? image.png image.jpeg I agree with orthoconic nautiloid.However, for what I've read, Orthoceras is not anymore used as generic name.It's only applied as a genus to the type-specie Orthoceras regulare (wich is only found in some European countries). I'm also with Pseudogygites latimarginatus on the trilo. Regards, Link to comment Share on other sites More sharing options...
GavySwan Posted June 27, 2016 Author Share Posted June 27, 2016 Thanks Guguita. That makes sense re: Orthoceras; I was using an old publication on the Craigleith fossils to help identify and they were usin it as a generic name. Good to know! Link to comment Share on other sites More sharing options...
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