Richardoestesia isosceles
species · Sankey 2001 · accepted · extinct
70 fossil sites · 11 formations · 2 countries
Lived when
Cretaceous – Paleogene
100.5–66 million years ago
Found where
2 countries
11 rock formations
Fossil record
70 sites
0 catalogued specimens
Inside this group
Immediate children
- Terminal taxon — no children recorded.
Did you know
Facts from the record
- Its fossils span about 35 million years, from 100.5 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.
- Richardoestesia isosceles was named in 2001 (Sankey 2001) — 25 years ago.
- Fossils have been recorded in 2 countries and 11 named rock formations.
Keep going
Where next
Data from the Paleobiology Database (CC BY 4.0).