Hadrosauroidea
unranked clade · (Huene 1954) · accepted · extinct
276 descendant taxa · 1,931 fossil sites · 252 formations · 35 countries
Lived when
Jurassic – Paleogene
174.7–61.66 million years ago
Found where
35 countries
252 rock formations
Fossil record
1,931 sites
175 catalogued specimens
Inside this group
Immediate children
- Terminal taxon — no children recorded.
Did you know
Facts from the record
- Its fossils span about 113 million years, from 174.7 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.
- Hadrosauroidea was named in 1954 ((Huene 1954)) — 72 years ago.
- Fossils have been recorded in 35 countries and 252 named rock formations.
- 175 individual specimens are catalogued in museum collections.
- This group contains 276 named taxa, including 141 species.
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Where next
Data from the Paleobiology Database (CC BY 4.0).