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Deltatheridiidae ✝

Photos

Photo Gallery

Source Data

Source	ID	Link
Global Biodiversity Information Facility ID (GBIF)	Not linked to a GBIF record.
PaleoBioDB ID (PBDB)	39919	https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=39919

Rank

family (PBDB)

Taxonomy (PBDB)

Life : Animalia : Chordata : Mammalia : Deltatheroida : Deltatheridiidae

Classification
(PBDB,GBIF)

Rank	Name	Author
-	Eukaryota
-	Opisthokonta	Cavalier-Smith 1987
kingdom	Animalia
-	Triploblastica	Lankester 1877
-	Nephrozoa	Jondelius et al. 2002
-	Deuterostomia	Grobben 1908
phylum	Chordata	Haeckel 1847
subphylum	Vertebrata	Lamarck 1801
superclass	Gnathostomata	Gegenbauer 1874
-	Osteichthyes
-	Sarcopterygii	Romer 1955
subclass	Dipnotetrapodomorpha
subclass	Tetrapodomorpha
-	Tetrapoda
-	Reptiliomorpha	Säve-Söderbergh 1934
-	Anthracosauria	Säve-Söderbergh 1934
-	Batrachosauria
-	Cotylosauria
-	Amniota	Haeckel 1866
-	Synapsida	Osborn 1903
-	Therapsida
infraorder	Cynodontia
-	Epicynodontia	Hopson and Kitching 2001
infraorder	Eucynodontia	Kemp 1982
-	Probainognathia	Hopson 1990
-	Mammaliamorpha	Rowe 1988
-	Mammaliaformes	Rowe 1988
class	Mammalia	Linnaeus 1758
-	Theriamorpha
-	Theriiformes
-	Trechnotheria	McKenna 1975
-	Cladotheria	McKenna 1975
-	Boreosphenida
subclass	Theria	Parker and Haswell 1897
subclass	Metatheria
order	Deltatheroida	Kielan-Jaworowska 1982
family	Deltatheridiidae	Gregory and Simpson 1926

Opinions (PBDB)

Name	Rank	Opinion	Evidence	Author
Deltatheridiidae	family	belongs to Insectivora	stated without evidence	Gregory and Simpson, 1926
Deltatheridiidae	family	belongs to Deltatheroida	stated without evidence	Averianov, 1997
Deltatheridiidae	family	belongs to Trituberculata	implied	McKenna and Bell, 1997
Deltatheridiidae	family	belongs to Deltatheroida	stated without evidence	Kielan-Jaworowska et al., 2004
Deltatheridiidae	family	belongs to Deltatheroida	stated with evidence	Archibald and Averianov, 2005
Deltatheridiidae	family	belongs to Deltatheroida	stated without evidence	Davis et al., 2008
Deltatheridiidae	family	belongs to Deltatheroida	stated with evidence	Davis and Cifelli, 2011

Status (PBDB)

extinct

Taxon Size (PBDB)

First Recorded Appearance

125 - 109 Ma
Early/Lower Cretaceous

Last Recorded Appearance

58.7 - 55.8 Ma
Paleogene

Environment

terrestrial (based on Mammalia)

Motility

actively mobile (based on Osteichthyes)

Diet

carnivore, durophage (based on Deltatheridiidae)

Reproduction

viviparous (based on Theria)

Ecospace Comments

Known Cretaceous marsupials ranged from 5 g or less to 2.0-5.5 kg body masses, based on dental measurements.

Taphonomy

phosphatic (based on Vertebrata)

Primary Reference (PBDB)

W. K. Gregory and G. G. Simpson. 1926. Cretaceous mammal skulls from Mongolia. American Museum Novitates 225:1-20

Fossil Distribution

Subtaxa

Name	Status	Fossil Occurrences	Oldest	Youngest
Sulestinae ✝ subfamily	listed (PBDB)
Atokatheridium ✝ genus	accepted (GBIF) listed (PBDB)	2	125 Ma Early/Lower Cretaceous	122 Ma Early/Lower Cretaceous
Gurbanodelta ✝ genus	accepted (GBIF) listed (PBDB)	1	58.7 Ma Paleocene	58.7 Ma Paleocene
Hydotherium ✝ genus	accepted (GBIF) listed (PBDB)	1	83.5 Ma Late/Upper Cretaceous	83.5 Ma Late/Upper Cretaceous
Lotheridium ✝ genus	doubtful (GBIF) listed (PBDB)	1	101 Ma Late/Upper Cretaceous	101 Ma Late/Upper Cretaceous
Nanocuris ✝ genus	accepted (GBIF) listed (PBDB)	2	72.1 Ma Late/Upper Cretaceous	70.6 Ma Late/Upper Cretaceous
Oklatheridium ✝ genus	accepted (GBIF) listed (PBDB)	9	125 Ma Early/Lower Cretaceous	113 Ma Early/Lower Cretaceous
Sulestes ✝ genus	accepted (GBIF) listed (PBDB)	12	93.5 Ma Late/Upper Cretaceous	93.5 Ma Late/Upper Cretaceous
Tsagandelta ✝ genus	accepted (GBIF) listed (PBDB)	1	101 Ma Late/Upper Cretaceous	101 Ma Late/Upper Cretaceous

Synonymy List

Year	Name and Author
1926	Deltatheridiidae Gregory and Simpson p. 3
1928	Deltatheridiidae Simpson p. 2
1990	Deltatheroididae Kielan-Jaworowska and Nessov
1997	Deltatheridiidae Averianov p. 246
1997	Deltatheridiidae McKenna and Bell
2004	Deltatheridiidae Kielan-Jaworowska et al. pp. 411, 445

Year	Name and Author
2005	Deltatheridiidae Archibald and Averianov
2008	Deltatheridiidae Davis et al. p. 8
2010	Deltatheridiidae Averianov et al. p. 302
2011	Deltatheridiidae Davis and Cifelli p. 443
2015	Deltatheridiidae Bi et al.

References

Gregory W. K., Simpson G. G. (1926) Cretaceous mammal skulls from Mongolia, American Museum Novitates 225, 1-20

Simpson G. G. (1928) Further notes on Mongolian Cretaceous mammals, American Museum Novitates 329, 1-14

Averianov A. O. (1997) New Late Cretaceous mammals of southern Kazakhstan, Acta Palaeontologica Polonica 42 2, 243-256

McKenna M. C., Bell S. K. (1997) , Classification of Mammals Above the Species Level, 1-640

Kielan-Jaworowska Z., Cifelli R. L., et al (2004) Mammals from the age of dinosaurs: Origins, evolution, and structure, Columbia University Press, New York, 1-630

Archibald J. D., Averianov A. O. (2005) Mammalian faunal succession in the Cretaceous of the Kyzylkum Desert, Journal of Mammalian Evolution 12 1-2, 9-22 doi:10.1007/s10914-005-4867-3

Davis B. M., Cifelli R. L., et al (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

Averianov A. O., Archibald J. D., et al (2010) New material of the Late Cretaceous deltatheroidan mammal Sulestes from Uzbekistan and phylogenetic reassessment of the metatherian-eutherian dichotomy, Journal of Systematic Palaeontology 8 3, 301-330 doi:10.1080/14772011003603499

Davis B. M., Cifelli R. L. (2011) Reappraisal of the tribosphenidan mammals from the Trinity Group (Aptian-Albian) of Texas and Oklahoma, Acta Palaeontologica Polonica 56 3, 441-462

Bi S., Jin X., et al (2015) A new Cretaceous metatherian mammal from Henan, China, PeerJ 3, e896 doi:10.7717/peerj.896

Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!

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