Pachycephalosaurinae
subfamily · Sereno 1997 · accepted · extinct
14 descendant taxa · 18 fossil sites · 7 formations · 2 countries
Lived when
Cretaceous – Paleogene
85.7–66 million years ago
Found where
2 countries
7 rock formations
Fossil record
18 sites
0 catalogued specimens
Inside this group
Immediate children
- Terminal taxon — no children recorded.
Did you know
Facts from the record
- Its fossils span about 20 million years, from 85.7 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.
- Pachycephalosaurinae was named in 1997 (Sereno 1997) — 29 years ago.
- Fossils have been recorded in 2 countries and 7 named rock formations.
- This group contains 14 named taxa, including 9 species.
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Where next
Data from the Paleobiology Database (CC BY 4.0).