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Showing results for tags 'jawless fish'.
Found 5 results
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Never seen this texture on a brachiopod or bryozoan before. Found in Wisconsin gravel.
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I’m legitimately lost as to what this could be. Devonian, Milwaukee formation. Fish tooth plate?
SilurianSalamander posted a topic in Fossil ID
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I found a new place to fossil hunt and it has many more fossils then the normal places I go. Lots and lots of coral, brachiopods, cephalopods, and crystallization. It honestly looks like a coral reef of some kind. I live in middle Tennessee and it's mostly Mississippian and ordovician in my area but there are some areas of Silurian-Devonian. I found this fossil first and thought it was some sort of larger cephalopod, but there were some strange things about it and I started to change my mind. It is a torpedo shaped fossil with crystallization. I will start with the pattern pictures first
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Now you guys can criticize me all you want with this theory, it’s just something I have thought of for a while. My theory is that hagfish (weird jawless fish with a primitive skull and no backbone) are in fact late surviving conodonts ( proto vertebrates from the Cambrian to late Triassic). First their Anatomy is very similar, a long eel like body, jawless appendages, and weird proto skulls. Another thing that’s supports my theory is that conodonts could have swam to deep water to escape environmental extinctions. So living in pitch dark water they lost their eyes but developed better olfactor
