CaryJo Posted March 10 Share Posted March 10 I found these two somewhat close together on an eroding hillside just south of WI in Stephenson County, IL. Link to comment Share on other sites More sharing options...
doushantuo Posted March 10 Share Posted March 10 (edited) the first image is certainly reminiscent of an orthocone (straight-shelled) cephalopd Edited March 10 by doushantuo 1 1 Link to comment Share on other sites More sharing options...
Rockwood Posted March 10 Share Posted March 10 I don't think the second one can really be identified. Link to comment Share on other sites More sharing options...
CaryJo Posted March 10 Author Share Posted March 10 3 minutes ago, Rockwood said: I don't think the second one can really be identified. I’m not sure what you mean here. The second photo or the second fossil? Link to comment Share on other sites More sharing options...
doushantuo Posted March 10 Share Posted March 10 a plate from Barrande 's " Systeme SIlurien" showing some " Orthoceras " morphologies 1 1 Link to comment Share on other sites More sharing options...
Rockwood Posted March 10 Share Posted March 10 13 minutes ago, CaryJo said: I’m not sure what you mean here. The second photo or the second fossil? I was referring to the second fossil, but the second photo isn't very informative either. A look from a different angle may help though. Link to comment Share on other sites More sharing options...
CaryJo Posted March 10 Author Share Posted March 10 13 minutes ago, Rockwood said: I was referring to the second fossil, but the second photo isn't very informative either. A look from a different angle may help though. Okay I’ll try again. Obviously I’m an utter novice at this. Thank you. 1 Link to comment Share on other sites More sharing options...
Rockwood Posted March 10 Share Posted March 10 17 minutes ago, CaryJo said: Okay I’ll try again. Obviously I’m an utter novice at this. Thank you. You're doing just fine. 1 1 Link to comment Share on other sites More sharing options...
Mark Kmiecik Posted March 10 Share Posted March 10 (edited) 1 hour ago, Rockwood said: I was referring to the second fossil, but the second photo isn't very informative either. A look from a different angle may help though. I think that's four different specimens, therefore the second fossil/second photo confusion. My guess is first one yes, the others don't present enough information for ID. Edited March 10 by Mark Kmiecik fix typo Mark. Fossil hunting is easy -- they don't run away when you shoot at them! Link to comment Share on other sites More sharing options...
Rockwood Posted March 10 Share Posted March 10 9 minutes ago, Mark Kmiecik said: I think that's four different specimens A fragment of cephalopod shell and three less identifiable fossils? Link to comment Share on other sites More sharing options...
Mark Kmiecik Posted March 10 Share Posted March 10 1 minute ago, Rockwood said: A fragment of cephalopod shell and three less identifiable fossils? Yup, that's what I'm thinking. #3 looks like a fragment of a shell imprint. #2 and #4 are anybody's guess. 1 Mark. Fossil hunting is easy -- they don't run away when you shoot at them! Link to comment Share on other sites More sharing options...
CaryJo Posted March 11 Author Share Posted March 11 6 hours ago, Mark Kmiecik said: I think that's four different specimens, therefore the second fossil/second photo confusion. My guess is first one yes, the others don't present enough information for ID. Link to comment Share on other sites More sharing options...
CaryJo Posted March 11 Author Share Posted March 11 No I’m sorry, it is two fossils, front and back of each. I was playing in the creek and just saw this. Link to comment Share on other sites More sharing options...
doushantuo Posted March 12 Share Posted March 12 the first one might be a member of the Narthecoceratidae family SEE plate 8 in this one Flower, R. H. (1968). Silurian Cephalopods of James Bay Lowland, with a revision of the family Narthecoceratidae. Geological Survey of Canada, Bulletin, 164, https://doi.org/10.4095/101469 size : pretty near 41 mB rhflowernarthecoceracephalopordovicibuGScanadabulln_164.pdf Link to comment Share on other sites More sharing options...
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