Deltatheridiidae
Deltatheridiidae is an extinct family of basal carnivorous metatherians that lived in the Cretaceous and were closely related to marsupials. Their fossils are restricted to Central Asia and North America. They mostly disappeared in the KT event, but a ghost lineage, currently represented by Gurbanodelta, survived until the late Paleocene by decreasing in size and becoming insectivorous.
The family consist in six genera:
- Atokatheridium
- Deltatheridium
- Deltatheroides
- Gurbanodelta
- Lotheridium
- Oklatheridium
- Nanocuris
- Sulestes
- Tsagandelta
