THE PREHISTORIC A–Z
Explore the letter U
A research index of dinosaur genus names, including names whose status has changed.
1,888 names catalogued from Wikipedia’s genus list on 11 October 2026. Inclusion does not establish that a name is a valid dinosaur genus. Historical or disputed names are marked for review. Names without a field note link go to the source overview.
- Uberabatitan ↗Source index entry
- Ubirajara ↗Historical / disputed: review source
- Udanoceratops ↗Source index entry
- Udelartitan ↗Source index entry
- Ugrosaurus ↗Historical / disputed: review source
- Ugrunaaluk ↗Historical / disputed: review source
- Uintasaurus ↗Historical / disputed: review source
- Ultrasauros ↗Historical / disputed: review source
- Ultrasaurus ↗Source index entry
- Ulughbegsaurus ↗Source index entry
- Umarsaurus ↗Historical / disputed: review source
- Unaysaurus ↗Source index entry
- Unenlagia ↗Source index entry
- Unescoceratops ↗Source index entry
- Unicerosaurus ↗Historical / disputed: review source
- Unquillosaurus ↗Source index entry
- Uragasaurus ↗Source index entry
- Urbacodon ↗Source index entry
- Uriash ↗Source index entry
- Utahceratops ↗Source index entry
- Utahraptor ↗Source index entry
- Uteodon ↗Source index entry
- Utetitan ↗Source index entry