Monoclonius crassus
species · Cope 1876 · accepted · extinct
2 fossil sites · 2 formations · 2 countries
Lived when
Cretaceous
83.6–72.2 million years ago
Found where
2 countries
2 rock formations
Fossil record
2 sites
11 catalogued specimens
Inside this group
Immediate children
- Terminal taxon — no children recorded.
Keep going
Where next
Data from the Paleobiology Database (CC BY 4.0).