Djadochtatherium fossil map
Where fossils of Djadochtatherium 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 |
| Family | Djadochtatheriidae |
| Named by | Simpson 1925 |
| Fossil records | 8 occurrences at 4 locations (PBDB) |
| Found in | Mongolia |
| Rock formations | Djadokhta |
About Djadochtatherium
Djadochtatherium is a mammal genus that lived in Mongolia during the Upper Cretaceous. It coexisted with some of the late dinosaurs. This animal was a member of the extinct order of Multituberculata. It is within the suborder of Cimolodonta, and a member of the family Djadochtatheriidae. It was named by G. G. Simpson in 1925, the name meaning "Djadokhta beast".
The species Djadochtatherium matthewi was also named by G. G. Simpson in 1925 and has also been known as Catopsalis matthewi (Simpson, 1925). It has been found in the Campanian (Upper Cretaceous)-age Djadokhta and Goyot Formations of Mongolia. This was a relatively large Multituberculate, with a skull length of about 4.5 cm. It was originally diagnosed as a species within the North American genus of Catopsalis.
Text in “About” is quoted from the Wikipedia article Djadochtatherium (revision 1283168037), 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: Q5285192.
