Chasmosaurinae
subfamily · Lambe 1915 · accepted · extinct
49 descendant taxa · 311 fossil sites · 30 formations · 3 countries
Lived when
Cretaceous – Paleogene
83.6–66 million years ago
Found where
3 countries
30 rock formations
Fossil record
311 sites
42 catalogued specimens
Inside this group
Immediate children
- Terminal taxon — no children recorded.
Did you know
Facts from the record
- Its fossils span about 18 million years, from 83.6 to 66 million years ago.
- The youngest known fossil is around 66 million years old — that is roughly 220 times further back than the whole of human history.
- Chasmosaurinae was named in 1915 (Lambe 1915) — 111 years ago.
- Fossils have been recorded in 3 countries and 30 named rock formations.
- 42 individual specimens are catalogued in museum collections.
- This group contains 49 named taxa, including 27 species.
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Where next
Data from the Paleobiology Database (CC BY 4.0).