Ornithischia
unranked clade · (Seeley 1888) · accepted · extinct
1,315 descendant taxa · 7,059 fossil sites · 726 formations · 71 countries
Lived when
Triassic – Paleogene
247–61.66 million years ago
Found where
71 countries
726 rock formations
Fossil record
7,059 sites
839 catalogued specimens
Inside this group
Immediate children
- Terminal taxon — no children recorded.
Did you know
Facts from the record
- Its fossils span about 185 million years, from 247 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.
- Ornithischia was named in 1888 ((Seeley 1888)) — 138 years ago.
- Fossils have been recorded in 71 countries and 726 named rock formations.
- 839 individual specimens are catalogued in museum collections.
- This group contains 1,315 named taxa, including 620 species.
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Where next
Data from the Paleobiology Database (CC BY 4.0).