Thescelosauridae
family · Sternberg 1937 · accepted · extinct
35 descendant taxa · 111 fossil sites · 31 formations · 5 countries
Lived when
Cretaceous – Paleogene
125.77–66 million years ago
Found where
5 countries
31 rock formations
Fossil record
111 sites
51 catalogued specimens
Inside this group
Immediate children
- Terminal taxon — no children recorded.
Did you know
Facts from the record
- Its fossils span about 60 million years, from 125.77 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.
- Thescelosauridae was named in 1937 (Sternberg 1937) — 89 years ago.
- Fossils have been recorded in 5 countries and 31 named rock formations.
- 51 individual specimens are catalogued in museum collections.
- This group contains 35 named taxa, including 18 species.
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Where next
Data from the Paleobiology Database (CC BY 4.0).