from the GNU version of the Collaborative International Dictionary of English
- proper n. A natural family of extinct reptiles including the duck-billed dinosaurs.
from The Century Dictionary and Cyclopedia
- A family of ornithopod dinosaurian reptiles with teeth in several rows, forming, with use, a tessellated grinding-surface.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. duck-billed dinosaurs; upper Cretaceous
Sorry, no etymologies found.
Angulomastacator (Hadrosauridae; Lambeosaurinae) 06.
It is also clear that some needed stability of relationships within basal Iguanodontia (Norman) and Hadrosauridae (Horner et al.) has been attained.
The Hadrosauridae is divided into two subfamilies (Lambeosaurinae, Hadrosaurinae).
(Dalla Vecchia 2009) (throughout this article, I'll be using 'hadrosaur' as a vernacular term for both Hadrosauridae, and for Hadrosauroidea),
These results provide quantitative support for the hypothesis that some clades (Nodosauridae, Hadrosauridae were more abundant in coastal and/or fluvial environments, while others (e.g.