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From the album: Devonian
From the Genundewa Limestone. These conodont elements seem to compare well with Polygnathus linguiformis. https://doi.org/10.1007/s12542-018-0408-6-
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From the album: Devonian
These shark teeth are very brittle and fragile - finding a complete one seems very unlikely. From the Genundewa Limestone.-
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From the album: Devonian
A Phoebodont shark tooth dwarfed by the head of a pin - they are very tiny and difficult to manipulate. From the Genundewa Limestone.-
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From the album: Devonian Shark Fossils
I found quite a few denticles and other bits of these cool early sharks. The distinct denticles associated with Omalodus are present as are denticles that are associated with Phoebodus and Antarticlamna like sharks.-
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mystery tooth, possibly an Antarticlamna like shark
fossilsonwheels posted a gallery image in Member Collections
From the album: Devonian Shark Fossils
The tooth on the right was found complete but the cusps broke during transfer. I found only a couple of partials with this distinct morphology. I think it could be some type of Antarticlamna but Portalodus would also be a possibility. I will not know until I find a complete one but I did also find compound denticles that are very similar to those attributed to Antarticlamna and related sharks.-
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From the album: Devonian Shark Fossils
A partial Phoebodus tooth.-
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From the album: Devonian Shark Fossils
Several of the Omalodus teeth from the Genundewa Limestone. Easily the most common tooth during our search.-
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An exciting micro find if you are a total shark nerd
fossilsonwheels posted a topic in General Fossil Discussion
I starting going through what will be my last round in the ring with the micro fossils from Genundewa. These Middle Devonian fossils from New York have been so much fun and provided many lessons. I have been hunting primitive and elusive shark remains. I have lost or broken a few. There have been no complete teeth but I absolutely had a blast and learned a lot. This evening I found a really nifty articulated group of 3 shark denticles with what appears to be some sort of connective tissue or something. I am certain these denticles are not grouped together via fossilization but rather a natural cluster. It’s tiny but it is a nifty 365 million year old piece of shark. In the first photo it is the largest dot lol I will be getting better pictures next week. I also found another piece that I will be photographing more closely. It is definitely different from the other fossils. My first thought was a small piece of skull but I really don’t know. It is not conodont. It is not a tooth. It is not a denticle. Whatever it is, it is something I have not encountered in this formation. It’s the largest dot in the second picture. The third pic is a nice Omalodus tooth. Not bad way to wrap up this formation. Time to get onto the next location. Not sure yet what is next but I sure did enjoy the many hours spent exploring Devonian sharks and Conodonts.- 6 replies
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From the album: Devonian Shark Fossils
Forgive the photo but I wanted to include this. This dermal denticle is an excellent match to Antarcticlamniformes denticles from several world wide locations and extremely similar to Wellerodus denticles from Givetian aged sharks from Cairo New York. I am completely comfortable calling this Wellerodus. We found a single tooth that appeared to be Wellerodus as well but have not photographed it. Wellerodus is classified as Antarticlamniformes.-
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From the album: Devonian Shark Fossils
Phoebodus sp. A truly bizarre and super cool early shark is Phoebodus. Very similar to modern Frilled Sharks. We are quite lucky to have a few of these. Our oldest are from micro searches. We found quite a few partials from this formation. Classified as Ctenacanthiformes as far as I know making these are oldest examples of that order.-
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From the album: Devonian Shark Fossils
Omalodus sp. An excellent match to Givetian Omalodus teeth from several other formations including one in New York. Classified in Omalodontifornes according to Fossilworks as is Doliodus though I’m not sure how closely they are related.-
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We have recently picked up some rather interesting micro shark teeth from the Paleozoic. Originally this was our way to get some older shark fossils to show students but I am actually pretty interested in continuing to collect micros from this period. First up, the oldest Chondrichthyes fossils we have and as I understand it, the second oldest yet found. Denticles Upper Ordovician Harding Sandstone Colorado I read that these had been given a name, Tezakia. Not sure if that is still valid or if these denticles match those described.
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