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Tyrannosaur tooth
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By ThePhysicist
Taxonomy
Tyrannosaur
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Avetheropoda
Family: Tyrannosauridae
Genus: ?Nanotyrannus
Species: ?Nanotyrannus lancensis
Author Citation Bakker et al. 1988
Geological Time Scale
Eon: Phanerozoic
Era: Mesozoic
Period: Cretaceous
Sub Period: None
Epoch: Late
Stratigraphy
Hell Creek Formation
Provenance
Acquired by: Purchase/Trade
Dimensions
Width: 13 mm
Height: 22 mm
Thickness: 5 mm
Location
Powder River County
Montana
United States
- c(hc)nl2
- hell creek
- hell creek formation
- juvenile t rex
- nanotyrannus
- nanotyrannus lancensis
- t rex
- tyrannosaur
- tyrannosaurid
- tyrannosauridae
Comments
Identification
Tyrannosaur teeth have similarly-sized serrations on each edge, and the serrations are chisel-shaped. This is a classic "Nano-morph" tooth being compressed and blade-like (which is the primitive condition of Tyrannosaurs).
Notes
This tooth has excellent preservation, with serrations crossing the tip, and clear enamel. There is a minor wear facet near the tip on the lingual side, indicating this is from the left maxilla.
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