Groeberiidae

Groeberiidae; Temporal range: Eocene - Oligocene 45–28 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Clade:	Theriiformes
Family:	†Groeberiidae; Patterson, 1952
Genera
	†Epiklohnia?; †Groeberia; †Klohnia?; †Praedens?;
Synonyms
	Groeberidae

Groeberiidae is a family of strange non-placental mammals from the Eocene and Oligocene epochs of Patagonia, Argentina and Chile, South America. Originally classified as paucituberculate marsupials, they were suggested to be late representatives of the allothere clade Gondwanatheria.^[1] However, the relationship of the type genus, Groeberia, to Gondwanatheria has been firmly rejected by other scholars.^[2]

^ Nicolás R. Chimento; Federico L. Agnolin; Fernando E. Novas (2015). "The bizarre 'metatherians' Groeberia and Patagonia, late surviving members of gondwanatherian mammals". Historical Biology: An International Journal of Paleobiology. 27 (5): 603–623. doi:10.1080/08912963.2014.903945. hdl:11336/85076. S2CID 216591096.
^ Hoffmann, Simone; Beck, Robin M. D.; Wible, John R.; Rougier, Guillermo W.; Krause, David W. (2020-12-14). "Phylogenetic placement of Adalatherium hui (Mammalia, Gondwanatheria) from the Late Cretaceous of Madagascar: implications for allotherian relationships". Journal of Vertebrate Paleontology. 40 (sup1): 213–234. doi:10.1080/02724634.2020.1801706. ISSN 0272-4634. S2CID 230968231.