Alvarezsauroidea
unranked clade · (Choiniere et al. 2010) · accepted · extinct
56 descendant taxa · 50 fossil sites · 20 formations · 7 countries
Lived when
Jurassic – Paleogene
161.5–66 million years ago
Found where
7 countries
20 rock formations
Fossil record
50 sites
37 catalogued specimens
Inside this group
Immediate children
- Terminal taxon — no children recorded.
Keep going
Where next
Data from the Paleobiology Database (CC BY 4.0).