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Showing results for tags 'agnathan fish'.
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I have just found this little coprolite? yesterday. This is the second time a coprolite-like fossil has turned up in the shale from the Leighton Fm. I am not really sure on this one, though, due to the presence of crinoid stems. The fossil(s) are from the Leighton Formation, Maine; which is Pridoli, Silurian. The main reason I think it is a coprolite is because of its situation in the shale. The rest of the shale around it is relatively uniform, with no fossils whatsoever. The fossils present in it are one crinoid stem, quite a few ostracods, a very small Orbiculoidea brachiopod,
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I wanted to start this thread on the identification and discussion of silurian fish remains. I have been learning a lot about this subject, and hope to share my own finds and discoveries with you. I also hope that this thread will not only include my finds, but finds of all members of the Fossil Forum who have such materials, so that we may share our knowledge on these amazing fish. Some of our members( @jdp, ... ) are quite knowledgable on such finds, and I am looking forward to working with you guys more. On each post, please include size, stratigraphi
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I have read in multiple papers that there are three theories to the preservation of thelodont scales. First, a rapid burial when the thelodonts have died under still circumstances, e. g., in a lagoon or other still body of water. This results in associated scales. Second, the thelodonts die and disintegrate in the open ocean, leaving behind disassociated scales. Third, the thelodonts were eaten, and deposited as coprolites. Now, I have just found an array of thelodont scales in a single small spot. The stone they are preserved in is a lighter color than the rest of the shale. The
