Genus
Valid Extinct

Avaceratops

Dodson 1986
Etymology Tête cornue d'Ava

Avaceratops is a genus of small herbivorous ceratopsian dinosaurs which lived during the late Campanian in what are now the Northwest United States. Most fossils come from the Judith River Formation.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
3
Group
Dinosaures
Herbivore Ground dwelling Terrestrial
Avaceratops
click to enlarge
Squamosal of Avaceratops lammersi. © Rivera-Sylva, H.E.; Hendrick, B.P.; Dodson, P. · CC BY 4.0 · Wikimedia
PBDB ↗ Wikipedia ↗
Classification
Dinosauria Unranked clade
›
Ornithischia Unranked clade
›
Neornithischia Unranked clade
›
Pyrodontia Unranked clade
›
Cerapoda Unranked clade
›
Marginocephalia Unranked clade
›
Ceratopsia Suborder
›
Ceratopsidae Family
›
Centrosaurinae Subfamily
›
Nasutoceratopsini Unranked clade
›
Avaceratops Genus
Measurements
Length
4,4 m ⓘ
Avaceratops lammersi
2,3 m ⓘ
Mass
1 000 kg ⓘ
Avaceratops lammersi
Fossil sites 3 geolocated sites
Distribution
Top countries
🇺🇸 United States
2
🇨🇦 Canada
1
Geological formations
Judith River
2
Oldman
1
Temporal distribution
Campanian (83.6–72.2 Ma)
3
Species (1)
Avaceratops lammersi 84 Ma
Images 2
Bibliography
Original description
P. Dodson. 1986. Avaceratops lammersi: a new ceratopsid from the Judith River Formation of Montana. Proceedings of the Academy of Natural Sciences of Philadelphia 138(2):305-317
Bibliography (2)
M. A. Loewen and J. J. W. Sertich. 2023. Campanian centrosaurid ceratopsian diversity and regional endemism in southern Laramidia. 14th Symposium on Mesozoic Terrestrial Ecosystems and Biota. The Anatomical Record 306 (S1)
P. Dodson. 1986. Avaceratops lammersi: a new ceratopsid from the Judith River Formation of Montana. Proceedings of the Academy of Natural Sciences of Philadelphia 138(2):305-317