Toggle navigation
MENU
Main Menu
About
User Guide
FAQ
Recent Changes
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 the genus
Extrania
G. †
Extrania
Qian 1983
show all
|
hide all
†
Extrania trigona
Yang et al. 1993