Hesperornithidae
unranked clade · (Marsh 1872) · accepted · extinct
19 descendant taxa · 76 fossil sites · 16 formations · 5 countries
Lived when
Cretaceous – Paleogene
100.5–66 million years ago
Found where
5 countries
16 rock formations
Fossil record
76 sites
0 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).