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Notorynchus sp.
Images: 
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By Sonickmonx
Taxonomy
"Cow Shark"
Kingdom: Animalia
Phylum: Chordata
Class: Chondricthyes
Order: Hexanchiformes
Family: Hexanchidae
Genus: Notorynchus
Species: Notorynchus sp.
Geological Time Scale
Eon: Phanerozoic
Era: Cenozoic
Period: Paleogene
Sub Period: None
Epoch: Eocene
International Age: Priabonian
Stratigraphy
Barnwell Group
Dry Branch Formation
Provenance
Date Collected: 05/28/2023
Acquired by: Field Collection
Location
Aiken
South Carolina
United States
Comments
Cow sharks are quite uncommon in this deposit, and even moreso it is exceedingly difficult to find one of good condition due to the nature of fossilization. The only species known from this deposit is likened to Notorynchus kempi by Cicimurri & Knight (2019), however they refrained from making a definitive classification due to lack of specimens and poor preservational quality.
References:
Cicimurri, D. J, & Knight, J. L. (2019). Late Eocene (Priabonian) elasmobranchs from the Dry Branch Formation (Barnwell Group) of Aiken County, South Carolina, USA. PaleoBios, 36.
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