New Members TebanB Posted May 21 New Members Share Posted May 21 My son found this on the shore of Presqu’ile Provincial Park. Is this a fossilized sea snail? 1 Link to comment Share on other sites More sharing options...
Kane Posted May 21 Share Posted May 21 Indeed it is a steinkern of a gastropod. It looks like a match for Hormotoma trentonensis, and places it in the Ordovician. 1 1 ...How to Philosophize with a Hammer Link to comment Share on other sites More sharing options...
Ludwigia Posted May 21 Share Posted May 21 Agreed, although I believe the species was revised and renamed Omospira trentonensis. 1 1 Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
Rockwood Posted May 21 Share Posted May 21 19 minutes ago, Kane said: Indeed it is a steinkern of a gastropod. It looks like a match for Hormotoma trentonensis, and places it in the Ordovician. How does a steinkern do this much work? I thought it was pretty much you've seen one you've seen them all. Link to comment Share on other sites More sharing options...
Kane Posted May 21 Share Posted May 21 In the Ordovician of Ontario, gastros are almost always steinkerns, so we differentiate them by shape. ...How to Philosophize with a Hammer Link to comment Share on other sites More sharing options...
Rockwood Posted May 21 Share Posted May 21 38 minutes ago, Kane said: In the Ordovician of Ontario, gastros are almost always steinkerns, so we differentiate them by shape. Still seems a bit sketchy for a species designation to me. Link to comment Share on other sites More sharing options...
Kane Posted May 21 Share Posted May 21 That's just the way it is. ...How to Philosophize with a Hammer Link to comment Share on other sites More sharing options...
Rockwood Posted May 21 Share Posted May 21 I guess it is common practice to name things even if only for the sake of reference. Link to comment Share on other sites More sharing options...
Kane Posted May 21 Share Posted May 21 34 minutes ago, Rockwood said: I guess it is common practice to name things even if only for the sake of reference. Barring a few miracles, such as finding more gastropods in our Ordovician deposits with shell material and/or a sudden flush of research funding, we may be stuck with what we have. That said, it does seem a lot of our species differentiation based on shape (whorls, turret height, etc.) seems to work so far. As you say, a kind of reference point. ...How to Philosophize with a Hammer Link to comment Share on other sites More sharing options...
New Members TebanB Posted May 21 Author New Members Share Posted May 21 Thank you so much for all the information, both my 8 year old and I are astounded by the possible age of our find! Link to comment Share on other sites More sharing options...
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