Image by Joseph E. Peterson, Collin Dischler, Nicholas R. Longrich · CC BY 2.5 · View on Wikimedia Commons
Sphaerotholus
Herbivore
There is no write-up for this dinosaur yet, but the scientific data below is complete.
Who lived alongside it
Dinosaurs found in the same rock formation as Sphaerotholus (Hell Creek), so they lived in the same region at roughly the same time.
Triceratops
Cretaceous
Edmontosaurus
Cretaceous
Tyrannosaurus
Cretaceous
Thescelosaurus
Cretaceous
Pachycephalosaurus
Cretaceous
Chirostenotes
Cretaceous
Pectinodon
Cretaceous
Leptoceratops
Cretaceous
Formation data from the Paleobiology Database, counting only each genus's main formations. One formation can span hundreds of thousands to millions of years, so this doesn't mean any two of them ever met.
Scientific details
- Classification
- Ornithischian (bird-hipped)
- Family
- Pachycephalosauridae
- When it lived
- 66–83.6 million years ago
- Geologic stages
- Campanian – Maastrichtian
- Named by
- Williamson and Carr, 2003
- Fossil occurrences
- 6 sites
Countries with fossils
- Canada
- United States
Data from Paleobiology Database and Wikidata