Species
Valid Extinct

Sphaerotholus buchholtzae

Williamson and Carr 2003

No Wikipedia summary available.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
2
Group
Dinosaures
Herbivore Ground dwelling, gregarious Terrestrial
🦴
PBDB ↗
Classification
Dinosauria Unranked clade
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Ornithischia Unranked clade
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Neornithischia Unranked clade
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Pyrodontia Unranked clade
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Cerapoda Unranked clade
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Marginocephalia Unranked clade
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Pachycephalosauria Suborder
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Pachycephalosauridae Family
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Pachycephalosaurinae Subfamily
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Sphaerotholus Genus
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Sphaerotholus buchholtzae Species
Fossil sites 2 geolocated sites
Distribution
Top countries
🇺🇸 United States
1
🇨🇦 Canada
1
Geological formations
Hell Creek
1
Frenchman
1
Temporal distribution
Maastrichtian (72.2–66 Ma)
2
Bibliography
Original description
T. E. Williamson and T. D. Carr. 2003. A new genus of derived pachycephalosaurian from western North America. Journal of Vertebrate Paleontology 22(4):779-801 DOI ↗
Bibliography (2)
J. C. Mallon, D. C. Evans, and T. T. Tokaryk, M. L. Currie. 2015. First pachycephalosaurid (Dinosauria: Ornithischia) from the Frenchman Formation (upper Maastrichtian) of Saskatchewan, Canada. Cretaceous Research 56:426-431 DOI ↗
T. E. Williamson and T. D. Carr. 2003. A new genus of derived pachycephalosaurian from western North America. Journal of Vertebrate Paleontology 22(4):779-801 DOI ↗