The morphology and systematics of Avaceratops, a primitive horned dinosaur from the Judith River Formation (Late Campanian) of Montana, with the description of a second skull

Volume: 19, Issue: 4, Pages: 692 - 711
Published: Dec 13, 1999
Abstract
The partial skull and skeleton of Avaceratops lammersi, an unusual ceratopsid from the Judith River Formation of central Montana, are described. Avaceratops has several characters that are unique among ceratopsids though not among protoceratopsids. Plesiomorphies include: a primitive squamosal; a solid parietal; lack of a caudo-sagittal indentation on the parietal; weakly developed olecranon process of the ulna; deltopectoral crest of humerus...
Paper Details
Title
The morphology and systematics of Avaceratops, a primitive horned dinosaur from the Judith River Formation (Late Campanian) of Montana, with the description of a second skull
Published Date
Dec 13, 1999
Volume
19
Issue
4
Pages
692 - 711
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