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Showing results for tags 'shark denticles'.
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I have done this periodically on the forum with quite a bit of success so I thought we would try it again. I am working on going deeper into shark evolution in our programs and expanding the range of sharks we cover by a few million years. We are set with our Cenozoic and Mesozoic sharks but we are still tinkering with the Paleozoic sharks. Currently the goal is extending the timeline backward and covering the very early sharks. Our earliest shark fossils were 340 million years old but we have been able to find a few that are older and really help us but I am wondering if we can find more.
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- shark denticles
- wellerodus
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From the album: Harding Sandstone
Chondrichthyan? denticles Tezakia hardingensis Harding Sandstone, Canyon City, CO, USA These are possible Ordovician Chrondrichthyan (class of cartilaginous fish including sharks) denticles, if true, these would be the earliest known. Described by Andreev et al. (2015) and Sansom et al. (1996) ^Andreev et al. (2015) -
From the album: Permian
These sharks would not be fun to pet. -
From the album: Post Oak Creek
A collection of denticles from sawfishes and possibly sharks.
