Species
Formal taxon Extinct

Spheroolithus albertensis

Zelenitsky and Hills 1997

No Wikipedia summary available.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
8
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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Ornithopoda Suborder
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Iguanodontia Infraorder
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Euiguanodontia Unranked clade
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Dryomorpha Unranked clade
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Ankylopollexia Unranked clade
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Styracosterna Unranked clade
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Hadrosauriformes Unranked clade
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Hadrosauroidea Unranked clade
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Spheroolithidae Family
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Spheroolithus Genus
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Spheroolithus albertensis Species
Fossil sites 8 geolocated sites
Distribution
Top countries
🇨🇦 Canada
5
🇺🇸 United States
3
Geological formations
Oldman
3
Cedar Mountain
2
Dinosaur Park
2
Two Medicine
1
Temporal distribution
Campanian (83.6–72.2 Ma)
6
Cenomanian (100.5–93.9 Ma)
2
Bibliography
Original description
D. K. Zelenitsky and L. V. Hills. 1997. Normal and pathological eggshells of Spheroolithus albertensis, oosp. nov., from the Oldman Formation (Judith River Group, Late Campanian), southern Alberta. Journal of Vertebrate Paleontology 17(1):167-171 DOI ↗
Bibliography (4)
J. Hedge, R. T. Tucker, and P. J. Makovicky, L. E. Zanno. 2025. Fossil eggshell diversity of the Mussentuchit Member, Cedar Mountain Formation, Utah. PLOS ONE 20(2):e0314689:1-33 DOI ↗
D. K. Zelenitsky and W. J. Sloboda. 2005. Eggshells. Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed. Indiana University Press, Bloomington
D. K. Zelenitsky. 2000. Dinosaur eggs from Asia and North America. Y.-N. Lee (ed.), 2000 International Dinosaur Symposium for Kosong County in Korea. Paleontological Society of Korea Special Publication 4:13-26
D. K. Zelenitsky and L. V. Hills. 1997. Normal and pathological eggshells of Spheroolithus albertensis, oosp. nov., from the Oldman Formation (Judith River Group, Late Campanian), southern Alberta. Journal of Vertebrate Paleontology 17(1):167-171 DOI ↗