Tsagandelta

Tsagandelta Temporal range: Late Cretaceous, 102–86 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Preserved left dentary in lateral view, holotype PSS-MAE 629
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	†Deltatheroida
Family:	†Deltatheridiidae
Genus:	†Tsagandelta Rougier et al. 2015
Species:	†T. dashzevegi
Binomial name
†Tsagandelta dashzevegi Rougier et al. 2015

Tsagandelta (meaning "white crest") is a genus of deltatheroidean therian mammal that lived in Asia during the Late Cretaceous. Distantly related to modern marsupials, it is part of Deltatheroida, a lineage of carnivorous metatherians common in the Cretaceous of Asia and among the most successful non-theropod carnivores of the region. It represents the first known mammal from the Bayan Shireh Formation.