Nominosuchus fossil map
Where fossils of Nominosuchus have been found, shown on the Earth as it looked about 145 million years ago and on today’s map.
Dots are fossil collections recorded in the Paleobiology Database. The “then” view moves today’s fossil sites back to their positions 145 million years ago (the time slice nearest the median age of the fossils) using the Merdith et al. (2021) plate model; positions are approximate. Open on the timeline map →
| Group | Crocodile relatives |
|---|---|
| Lived | 157.9–143.1 million years ago |
| Periods | Jurassic |
| Family | Shartegosuchidae |
| Named by | Efimov 1996 |
| Fossil records | 3 occurrences at 2 locations (PBDB) |
| Found in | Mongolia, China |
| Rock formations | Ulan Malgait, Qigu |
About Nominosuchus
Nominosuchus is a genus of protosuchian-grade crocodyliform. It is known from several specimens discovered in ancient lake deposits of the Tithonian-age Upper Jurassic Ulan Malgait Formation, southwestern Mongolia. The type specimen is PIN 4174/4, a partial skull. Nominosuchus was not large; its skull length is estimated at 60 millimetres (2.4 in). It was similar to Shartegosuchus, and is assigned to the same family (Shartegosuchidae). Nominosuchus was described in 1996 by Mikhail Efimov, and the type species is N. matutinus.
Text in “About” is quoted from the Wikipedia article Nominosuchus (revision 1354843774), licensed under CC BY-SA 4.0; introduction excerpted verbatim, formatting removed. Ages, family, authority and fossil records: Paleobiology Database, accessed 23 October 2026. Ages are those of the rock layers the fossils were found in. Wikidata: Q7048624.
