Bulganbaatar fossil map
Where fossils of Bulganbaatar 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 | 6 occurrences at 3 locations (PBDB) |
| Found in | Mongolia, Kazakhstan |
| Rock formations | Djadokhta, Dabrazhin |
About Bulganbaatar
Bulganbaatar is an extinct genus of early mammals from the Upper Cretaceous.
It is a member of the extinct order Multituberculata. It lies within the suborder Cimolodonta and is a member of the superfamily Djadochtatherioidea. The genus Bulganbaatar was named by Zofia Kielan-Jaworowska in 1974 after the village of Bulgan situated near Bayn Dzak.
It is one of many Cretaceous aged mammal discoveries made by Kielan-Jaworowska and co-workers from Central Asian sites. Kielan-Jaworowska considered B.nemegtbaatorides to be the ancestor to the genus Nemegtbaatar due to similarity but more derived teeth in the latter, hence the names. According to Kielan-Jaworowska and Hurum, both Bulganbaatar and Nemegtbaatar are distinctive for exhibiting "elongation of the last
upper premolar and molars, and an increase in their cusp numbers."
Fossil remains of Bulganbaatar have been found in Upper Cretaceous-aged strata of the Djadokhta Formation of Mongolia and Kazakhstan. Their appearances range between 84 and 81 million years ago, from the late Santonian to the early Campanian ages.
Text in “About” is quoted from the Wikipedia article Bulganbaatar (revision 1305940408), 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: Q3646798.
