Genus
Valid Extinct

Stellasaurus

Wilson et al. 2020

Stellasaurus is a genus of centrosaurine ceratopsid dinosaur that lived in Montana during the Late Cretaceous. The type and only species is Stellasaurus ancellae. Its remains have been found in the late Campanian-aged Two Medicine Formation, the same geological unit which its relatives Rubeosaurus, Einiosaurus, and Achelousaurus were discovered in.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
1
Group
Dinosaures
Herbivore Ground dwelling Terrestrial
Stellasaurus
click to enlarge
Left lateral parietal bar of Stellasaurus ancellae holotype MOR 492 in dorsal and ventral views. EPS, epiparietosquamosal; PSC, parietosquamosal contact. Scale bar 10 cm. Parietal line drawing modified from Evans & Ryan [22], Public Library of Science (PLoS), used under Creative Commons Attribution 4.0. © John P. Wilson, Michael J. Ryan and David C. Evans · CC BY-SA 4.0 · Wikimedia
PBDB ↗ Wikipedia ↗
Classification
Dinosauria Unranked clade
›
Ornithischia Unranked clade
›
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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Ceratopsia Suborder
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Ceratopsidae Family
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Centrosaurinae Subfamily
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Stellasaurus Genus
Measurements
Length
4,2 m ⓘ
Stellasaurus ancellae
Mass
850 kg ⓘ
Stellasaurus ancellae
Fossil sites 1 geolocated sites
Distribution
Top countries
🇺🇸 United States
1
Geological formations
Two Medicine
1
Temporal distribution
Campanian (83.6–72.2 Ma)
1
Species (1)
Stellasaurus ancellae 84 Ma
Images 1
Bibliography
Original description
J. P. Wilson, M. J. Ryan, and D. C. Evans. 2020. A new, transitional centrosaurine ceratopsid from the Upper Cretaceous Two Medicine Formation of Montana and the evolution of the 'Styracosaurus-line' dinosaurs. Royal Society Open Science 7:200284 DOI ↗
Bibliography (1)
J. P. Wilson, M. J. Ryan, and D. C. Evans. 2020. A new, transitional centrosaurine ceratopsid from the Upper Cretaceous Two Medicine Formation of Montana and the evolution of the 'Styracosaurus-line' dinosaurs. Royal Society Open Science 7:200284 DOI ↗