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Pennsylvanian Shark Tooth
Images:
By BobWill
Taxonomy
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Order: Petalodontidae
Family: Pristodontidae
Genus: Peripristis
Species: Peripristis semicircularis
Author Citation Newberry and Worthen 1866
Geological Time Scale
Eon: Phanerozoic
Era: Paleozoic
Period: Carboniferous
Sub Period: Pennsylvanian
Epoch: Late
Stratigraphy
Cisco Group
Graham Formation
Finis Shale Member
Provenance
Collector: Bob Williams
Date Collected: 11/24/2012
Acquired by: Field Collection
Dimensions
Length: 30 mm
Location
Lost Creek Spillway
Jack County
Texas
United States
Comments
Photo featured in "Marine Shark" section of Color Guide to Pennsylvanian Fossils of North Texas by Mark McKinzie and John McLeod. Labial face. Missing root and extreme tip on right end of photo.
EDIT: Pennsylvanian is Subperiod, Late is Epoch.
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