Edited by LordTrilobite
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Hadrosaur Humerus
Images: 
By LordTrilobite (edited)
Taxonomy
Duckbill Dinosaur
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Order: Ornithischia
Family: Hadrosauridae
Genus: cf. Hypacrosaurus
Species: cf. Hypacrosaurus stebingeri
Author Citation Horner & Currie, 1994
Geological Time Scale
Eon: Phanerozoic
Era: Mesozoic
Period: Cretaceous
Sub Period: None
Epoch: Late
International Age: Campanian
Provenance
Acquired by: Purchase/Trade
Location
Hamilton
Ravalli County
Montana
United States
- campanian
- cretaceous
- hadrosaur
- humerus
- lambeosaurine
- saurolophine
- two medicine
- two medicine formation
Comments
The left humerus of a juvenile hadrosaur. Found near Hamilton. The closest formation is Two Medicine formation. The deltopectoral crest seems fairly robust for such a young animal so I'm leaning towards this being Lambeosaurine instead of Saurolophine, which would make it most likely Hypacrosaurus. The shape also fits quite well with a juvenile Hypacrosaurus
I have restored some small areas where there were large holes. But I have left the largest area of damage due to it being a little unclear as to how robust or slender that area would have been.
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