Neornithischia
unranked clade · (Cooper 1985) · accepted · extinct
909 descendant taxa · 5,381 fossil sites · 595 formations · 65 countries
Lived when
Triassic – Paleogene
237–61.66 million years ago
Found where
65 countries
595 rock formations
Fossil record
5,381 sites
588 catalogued specimens
Inside this group
Immediate children
- Terminal taxon — no children recorded.
Did you know
Facts from the record
- Its fossils span about 175 million years, from 237 to 61.66 million years ago.
- The youngest known fossil is around 61.66 million years old — that is roughly 206 times further back than the whole of human history.
- Neornithischia was named in 1985 ((Cooper 1985)) — 41 years ago.
- Fossils have been recorded in 65 countries and 595 named rock formations.
- 588 individual specimens are catalogued in museum collections.
- This group contains 909 named taxa, including 435 species.
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Where next
Data from the Paleobiology Database (CC BY 4.0).