Genus
Valid Extinct

Oryctodromeus

Varricchio et al. 2007

Oryctodromeus is an extinct genus of small orodromine thescelosaurid dinosaur. Fossils are known from the mid-Cretaceous Blackleaf Formation of southwestern Montana and the Wayan Formation of southeastern Idaho, USA, both from around the Albian–Cenomanian ages, roughly 105-96 million years ago. A member of the small, presumably fast-running herbivorous family Thescelosauridae, Oryctodromeus is the first non-avian dinosaur published that shows evidence of burrowing behavior.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
9
Group
Dinosaures
Herbivore Ground dwelling, gregarious Terrestrial
Oryctodromeus
click to enlarge
Oryctodromeus cubicularis - Museum of the Rockies © Tim Evanson · CC BY-SA 2.0 · Wikimedia
PBDB ↗ Wikipedia ↗
Classification
Dinosauria Unranked clade
›
Ornithischia Unranked clade
›
Neornithischia Unranked clade
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Thescelosauridae Family
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Orodrominae Subfamily
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Oryctodromeus Genus
Measurements
Length
2,1 m ⓘ
Oryctodromeus cubicularis
2,1 m ⓘ
Mass
18 kg ⓘ
Oryctodromeus cubicularis
Fossil sites 9 geolocated sites
Distribution
Top countries
🇺🇸 United States
9
Geological formations
Wayan
8
Blackleaf
1
Temporal distribution
Cenomanian (100.5–93.9 Ma)
8
Albian (113.2–100.5 Ma)
1
Species (1)
Oryctodromeus cubicularis 106 Ma
Images 1
Bibliography
Original description
D. J. Varricchio, A. J. Martin, and Y. Katsura. 2007. First trace and body fossil evidence of a burrowing, denning dinosaur. Proceedings of the Royal Society of London B 274:1361-1368 DOI ↗
Bibliography (2)
L. J. Krumenacker. 2010. Chronostratigraphy and Paleoecology of the Mid-Cretaceous Wayan Formation of Eastern Idaho, with a Description of the First Oryctodromeus Specimens from Idaho.
D. J. Varricchio, A. J. Martin, and Y. Katsura. 2007. First trace and body fossil evidence of a burrowing, denning dinosaur. Proceedings of the Royal Society of London B 274:1361-1368 DOI ↗