Heterodontosauridae
family · Romer 1966 · accepted · extinct
18 descendant taxa · 39 fossil sites · 14 formations · 10 countries
Lived when
Triassic – Cretaceous
227.3–121.4 million years ago
Found where
10 countries
14 rock formations
Fossil record
39 sites
5 catalogued specimens
Inside this group
Immediate children
- Terminal taxon — no children recorded.
Did you know
Facts from the record
- Its fossils span about 106 million years, from 227.3 to 121.4 million years ago.
- The youngest known fossil is around 121.4 million years old — that is roughly 405 times further back than the whole of human history.
- Heterodontosauridae was named in 1966 (Romer 1966) — 60 years ago.
- Fossils have been recorded in 10 countries and 14 named rock formations.
- 5 individual specimens are catalogued in museum collections.
- This group contains 18 named taxa, including 9 species.
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Where next
Data from the Paleobiology Database (CC BY 4.0).