Toggle navigation
MENU
Main Menu
About
User Guide
FAQ
Recent Changes
Data Definitions
People
Funding
Project Development
Official Publications
Partner Organizations
Database Policies
Grant Writing Assistance
Contact Us
Download
Search
Fossil collection records
Fossil organisms
Published references
Classifications of taxa in groups
Stratigraphic units
Data archives
Login
Classification of Knowlton 1909
G. †
Triceratops
Marsh 1889
show all
|
hide all
†
Triceratops horridus
Marsh 1889
G. †
Agathaumas
Cope 1872
show all
|
hide all
†
Agathaumas sylvestris
Cope 1872