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Deltatheridiidae Temporal range: Barremian – Paleocene PreꞒ Ꞓ O S D C P T J K Pg N Early Cretaceous-Paleocene
Deltatheridium praetrituberculare
A hypothetical life restoration of Sulestes karakshi.
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	†Deltatheroida
Family:	†Deltatheridiidae Gregory & Simpson, 1926
Type genus
Deltatheridium Gregory & Simpson, 1926
Genera
See text
Synonyms
Deltatheroididae Kielan-Jaworowska & Nessov, 1990 Nanocuridae Fox, Scott & Bryant, 2007

Deltatheridiidae is an extinct family of basal carnivorous metatherians that lived during the Cretaceous and Paleogene. They were closely related to marsupials. Their fossils are restricted to Central Asia (Mongolia and Uzbekistan) and North America (United States - Oklahoma, Texas, Utah, Wyoming). 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 Kielan-Jaworowska & Cifelli, 2001
• Deltatheridium Gregory & Simpson, 1926
• Deltatheroides Gregory & Simpson, 1926
• Gurbanodelta X. Ni et al. 2016
• Lotheridium S. Bi et al. 2015
• Oklatheridium Davis, Cifelli & Kielan-Jaworowska, 2008
• Nanocuris Fox, Scott & Bryant, 2007
• Sulestes Nessov, 1985
• Tsagandelta G. W. Rougier et al. 2015

References

1. Xijun Ni; Qiang Li; Thomas A. Stidham; Lüzhou Li; Xiaoyu Lu; Jin Meng (2016). "A late Paleocene probable metatherian (?deltatheroidan) survivor of the Cretaceous mass extinction". Scientific Reports. 6: Article number 38547. doi:10.1038/srep38547.
2. B. M. Davis, R. L. Cifelli, and Z. Kielan-Jaworowska. 2008. 1. Earliest Evidence of Deltatheroida (Mammalia: Metatheria) from the Early Cretaceous of North America. Mammalian Evolutionary Morphology: A Tribute to Frederick S. Szalay 3-24
3. G. P. Wilson and J. A. Riedel. 2010. New specimen reveals deltatheroidan affinities of the North American Late Cretaceous mammal Nanocuris. Journal of Vertebrate Paleontology 30(3):872-884
4. B. M. Davis and R. L. Cifelli. 2011. Reappraisal of the tribosphenidan mammals from the Trinity Group (Aptian-Albian) of Texas and Oklahoma. Acta Palaeontologica Polonica 56(3):441-462
5. Xijun Ni; Qiang Li; Thomas A. Stidham; Lüzhou Li; Xiaoyu Lu; Jin Meng (2016). "A late Paleocene probable metatherian (?deltatheroidan) survivor of the Cretaceous mass extinction". Scientific Reports. 6: Article number 38547. doi:10.1038/srep38547.

v t e Metatheria
Kingdom: Animalia Phylum: Chordata Class: Mammalia Subclass: Theria Synapsida see Synapsida Cynodontia see Cynodontia Mammalia see Mammalia Metatheria see below↓
Metatheria Metatheria †Adinodon †Archaeonothos †Esteslestes †Ghamidtherium †Holoclemensia? †Kasserinotherium †Protalphadon †Sinodelphys? †Deltatheroida Pappotherium? Deltatheridiidae Atokatheridium? Deltatheridium Deltatheroides Gurbanodelta Lotheridium Nanocuris Oklatheridium? Prodeltitheridium Sulestes Tsagandelta Marsupialiformes †Adelodelphys †Aenigmadelphys †Anchistodelphys †Andinodelphys †Arcantiodelphys †Camptomus? †Glasbius †Gurlin Tsav skull †Iugomortiferum †Jaskhadelphys †Mayulestes †Pucadelphys †Sinbadelphys †Sparassodonta see below↓ †Asiatheriidae Asiatherium Kokopellia †Archimetatheria Iqualadelphis Stagodontidae Didelphodon Eobrasilia? Eodelphis Fumodelphodon Hoodootherium Pariadens? Pediomyoidea Aquiladelphis Austropediomys Dakotadens Monodelphopsis Pediomys Protolambda Scalaridelphys Unnuakomys †Peradectidae Armintodelphys Didelphidectes Mimoperadectes Nanodelphys Peradectes Siamoperadectes †Alphadontidae Albertatherium Alphadon Eoalphadon Turgidodon †Herpetotheriidae Amphiperatherium Asiadidelphis Copedelphys Ectocentrocristus Entomacodon Galatiadelphys Golerdelphys Herpetotherium Indodelphis Maastrichtidelphys Morotodon? Nortedelphys Peratherium Rumiodon? Swaindelphys Thylacodon †Anatoliadelphyidae Anatoliadelphys Orhaniyeia †Polydolopimorphia see below↓ Marsupialia Ameridelphia Didelphimorphia Paucituberculata Australidelphia
Sparassodonta Sparassodonta Allqokirus Argyrolestes Hondadelphys Nemolestes Patene Procladosictis Stylocynus Hathliacynidae Acyon Australogale Borhyaenidium Chasicostylus Cladosictis Notictis Notocynus Notogale Perathereutes Pseudonotictis Sallacyon Sipalocyon Borhyaenoidea Angelocabrerus Chlorocyon Dukecynus Fredszalaya Lycopsis Pharsophorus Plesiofelis Prothylacinus Pseudolycopsis Pseudothylacynus Borhyaenidae Acrocyon Arctodictis Australohyaena Borhyaena Eutemnodus? Proborhyaenidae Arminiheringia Callistoe Paraborhyaena Proborhyaena Thylacosmilidae Anachlysictis Eomakhaira Patagosmilus Thylacosmilus
Polydolopimorphia Polydolopimorphia Apeirodon? Bobbschaefferia Caroloameghinia Carolocoutoia Guggenheimia Gashternia Hatcheritherium Palangania Procaroloameghinia Protodidelphis Pujatodon? Reigia Robertbutleria Wamradolops Zeusdelphys Bonapartheriiformes Bonapartheriidae Bonapartherium Epidolops Argyrolagidae Anargyrolagus Argyrolagus Hondalagus Microtragulus Proargyrolagus Chulpasiinae Chulpasia Thylacotinga Prepidolopidae Incadolops Perrodelphys Prepidolops Punadolops Seumandia Rosendolopidae Hondonadia Rosendolops Polydolopiformes Polydolopidae Amphidolops Antarctodolops Eudolops Eurydolops Hypodolops Kramadolops Parabderites Polydolops Pseudolops Sillustaniidae Roberthoffstetteria Sillustania

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