''Deltatheroides'' is an
extinct
Extinction is the termination of an organism by the death of its Endling, last member. A taxon may become Functional extinction, functionally extinct before the death of its last member if it loses the capacity to Reproduction, reproduce and ...
genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...
of
Deltatheridiidae
Deltatheridiidae is an extinct family (biology), family of basal carnivore, carnivorous Metatheria, metatherians that lived during the Cretaceous and Paleogene. They were closely related to marsupialia, marsupials. Their fossils are restricted to ...
from
Cretaceous
The Cretaceous ( ) is a geological period that lasted from about 143.1 to 66 mya (unit), million years ago (Mya). It is the third and final period of the Mesozoic Era (geology), Era, as well as the longest. At around 77.1 million years, it is the ...
of
Mongolia
Mongolia is a landlocked country in East Asia, bordered by Russia to the north and China to the south and southeast. It covers an area of , with a population of 3.5 million, making it the world's List of countries and dependencies by po ...
. Another specimen found in Wyoming is suspected to belong to this genus.
References
Prehistoric metatherians
Cretaceous mammals
Fossils of Mongolia
Fossil taxa described in 1926
Prehistoric mammal genera
{{cretaceous-mammal-stub