Nemegtbaatar fossil map
Where fossils of Nemegtbaatar have been found, shown on the Earth as it looked about 75 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 75 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 | Early mammals |
|---|---|
| Lived | 83.6–72.2 million years ago (Campanian) |
| Periods | Cretaceous |
| Named by | Kielan-Jaworowska 1974 |
| Fossil records | 12 occurrences at 6 locations (PBDB) |
| Found in | Mongolia |
| Rock formations | Baruungoyot, Djadokhta |
About Nemegtbaatar
Nemegtbaatar is an extinct genus of mammal from the Upper Cretaceous Period of what is now Central Asia. It belonged to the order Multituberculata. Nemegtbaatar is within the suborder Cimolodonta and is a member of the superfamily Djadochtatherioidea.
The genus Nemegtbaatar (Kielan-Jaworowska, 1974) was named after the Nemegt Valley and Ulan Bator, the capital of Mongolia. The type species is Nemegtbaatar gobiensis. It was discovered in Campanian aged strata of the Barun Goyot Formation in the Gobi Desert of Mongolia. Fossils of this species have been found in rocks dated from 76 to 71 million years ago, correlating to the Campanian and early Maastrichtian ages. With several intact skulls having been found, it can be determined that N.gobiensis has a dental formula of 2.0.4.21.0.2.2 with a "roughly triangular" snout. Nemegtbaatar is possibly derived from a Bulganbaatar ancestor, based on a comparison of their dentition.
Text in “About” is quoted from the Wikipedia article Nemegtbaatar (revision 1358077309), 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: Q18601564.
