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Squatina sp.
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By Sonickmonx
Taxonomy
"Angel Shark"
Kingdom: Animalia
Phylum: Chordata
Class: Chondricthyes
Order: Squatiniformes
Family: Squatinidae
Genus: Squatina
Species: Squatina 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: 06/24/2023
Acquired by: Field Collection
Location
Aiken
South Carolina
United States
Comments
This specimen was collected from a locality in Aiken, SC that I discovered in mid-2023. This locality adds to the very limited known exposures of fossiliferous Dry Branch strata in the Aiken region. Squatina are an uncommon find in these exposures, and finding one of such quality even more so. It can be seen how the glossy enamel has been leeched away leaving the dentine core, something discussed in Cicimurri and Knight's (2019) publication. In the aforementioned publication the authors tentatively assign the species to Squatina prima "...specific identification is tentative because of the small and imperfectly preserved sample". Because their identification was tentative I will refrain from making a specific identification.
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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