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.
Did you know
Facts from the record
- Its fossils span about 11 million years, from 83.6 to 72.2 million years ago.
- The youngest known fossil is around 72.2 million years old — that is roughly 241 times further back than the whole of human history.
- Monoclonius crassus was named in 1876 (Cope 1876) — 150 years ago.
- Fossils have been recorded in 2 countries and 2 named rock formations.
- 11 individual specimens are catalogued in museum collections.
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Where next
Data from the Paleobiology Database (CC BY 4.0).