FluffUnicorn Posted August 1, 2021 Share Posted August 1, 2021 I found this fossil in the Georgian bay formation in the GTA in southern Ontario. I have no idea what the area highlighted in blue is (first picture). It looks like a slug or some type of annelid. My only guess is some type of Machaeridian, but I doubt it's that as well. Any ideas? It measures around 9 cm tip to tip, Thanks Link to comment Share on other sites More sharing options...
connorp Posted August 2, 2021 Share Posted August 2, 2021 Definitely not an annelid. Could be part of a coral. 1 Link to comment Share on other sites More sharing options...
FluffUnicorn Posted August 2, 2021 Author Share Posted August 2, 2021 Yeah I think you’re right, I’m not good with corals from this time period but it doesn’t seem like a standard rugose coral. After some more research, it looks a bit like a conulariida, but I’m not sure. Link to comment Share on other sites More sharing options...
Rockwood Posted August 2, 2021 Share Posted August 2, 2021 1 hour ago, FluffUnicorn said: , it looks a bit like a conulariida, but I’m not sure. I'd put the odds about even with it being the remnant of more nautiloid shell. The shell seems to thin nearer the living chamber in most, I believe. That would leave both with about the same preservation potential relative to the nautiloid seen. I think. Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted August 21, 2021 Share Posted August 21, 2021 I say geological / erosional. Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
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