Object Info
Specimen Id: |
[460640] |
Sex: | Unspecified |
Collector: | unspecified |
InfraOrder Name: | Ornithopoda |
Object Id: |
[461185] |
Object Type: | Image |
Annotation Type: | General |
Comments
Absence and presence (arrows) of a ventral transverse ridge between the
basipterygoid processes of the basisphenoid. All specimens shown in ventral view. A, Amurosaurus riabinini (cast of AEHM 1/12). B, Hypacrosaurus altispinus (CMN 8675). C, Parasaurolophus tubicen (PMU R222). D, Edmontosaurus regalis (CMN 2289).
Determination annotations
Other Annotations
Title: BS3 Type: General | Date: 09-10-2008 User: Albert Prieto-Marquez | |