
Nyasasaurus
"Lake Nyasa lizard"
DV-0196 · type species Nyasasaurus cromptoni
- Lived
- 247 to 242 million years ago, Middle Triassic
- Group
- Early dinosaurs
- Found in
- Tanzania
- Named by
- Charig 1967
Field notes
About Nyasasaurus
What it was like
Nyasasaurus is known only from a handful of fragmentary bones, not enough to say much about its size or shape. Because those bones show traits close to those of the earliest true dinosaurs, some paleontologists count Nyasasaurus among the very first dinosaurs known. Whether it was truly a dinosaur or just a very close relative just outside the group is still debated.
Its world
Nyasasaurus lived in what is now Tanzania during the Middle Triassic, between about 247 and 242 million years ago. Its bones come from the Manda Beds, from two finds. It shared this ancient landscape with Asilisaurus, an early relative of dinosaurs.
How it was found
Charig named Nyasasaurus in 1967, though the animal was not formally described in detail until decades later. Its type species is Nyasasaurus cromptoni. Because so little of the skeleton is known, Nyasasaurus remains one of the most uncertain candidates for the title of oldest dinosaur.
The evidence
Where its fossils were found
Today
245 million years ago
Lived alongside
Found in the same rock formations.
Close relatives
Other members of Dinosauria.
Sources: Paleobiology Database, WikidataNamed in: A. J. Charig. 1967. Archosauria. The Fossil Record: A Symposium with Documentation. Geological Society of London Special Publication 2:703-718