Nannopterygius
Dolphin-shaped sea reptiles: fast swimmers with huge eyes that gave birth to live young at sea instead of laying eggs on land.
Who it is related to: A branch of reptiles separate from the dinosaurs; exactly where it sits on the family tree is still debated.
This page has only the scientific data from the databases; there is no hand-written description yet.
Dinosaurs from the same rocks
Nannopterygius was found in the Kimmeridge Clay, which also holds these dinosaurs: the same region and broad span of time.
Cumnoria
Juratyrant
Duriatitan
Megalosaurus
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
- Group
- Ichthyosaurs
- Family
- Ophthalmosauridae
- When it lived
- 143.1–154.8 million years ago
- Geologic stages
- Kimmeridgian – Tithonian
- Named by
- Sepkoski, 2002
- Fossil occurrences
- 3 sites
Countries with fossils
- Russia
- United Kingdom
Data from Paleobiology Database and Wikidata