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Showing results for tags 'lonchidion selachos'.
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From the album: Hell Creek Formation Microsite
Lonchidion was one of the last of the hybodonts, a lineage of shark-like fishes spanning nearly 300 million years before they went extinct along with the non-avian dinosaurs. Lonchidion had barbed spines on their dorsal fins and a durophagous dentition more suited to grinding than grasping. Like most hybodont teeth, their roots are fragile and their teeth are only rarely found complete. In this deposit they seem to be fairly rare; I’ve thus far only found two.-
- cretaceous
- hell creek
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From the album: Texas Cretaceous Fossils : Sharks and Rays
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- aguja formation
- cretaceous
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(and 4 more)
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From the album: Hell Creek / Lance Formations
A hybodont "shark" found in a channel deposit. This was among the last of the hybodonts - a group that spanned nearly 300 million years before going extinct along with the non-avian dinosaurs 66 million years ago.-
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- hell creek
- hell creek formation
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From the album: Aguja Formation
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- 1
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- aguja
- aguja formation
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