Title of article
New leptoceratopsids from the Upper Cretaceous of Alberta, Canada
Author/Authors
Ryan، نويسنده , , Michael J. and Evans، نويسنده , , David C. and Currie، نويسنده , , Philip J. and Brown، نويسنده , , Caleb M. and Brinkman، نويسنده , , Don، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2012
Pages
12
From page
69
To page
80
Abstract
Two new leptoceratopsid neoceratopsians are described based on partial dentaries collected from the Dinosaur Park (Campanian) and Milk River (Santonian) formations of Alberta. The new Campanian taxon has a unique dentary tooth shape not shared by other leptoceratopsid taxa, which has implications for the evolution of the Leptoceratopsidae. The Santonian specimen represents the oldest known leptoceratopsid (∼83 Ma), and probably represents the smallest adult-sized ceratopsian known from North America.
Keywords
Campanian , Leptoceratopsidae , Evolution , Ceratopsia , systematics , Santonian
Journal title
Cretaceous Research
Serial Year
2012
Journal title
Cretaceous Research
Record number
2303363
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