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Deltatheroida ✝

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Source Data

Source	ID	Link
Global Biodiversity Information Facility ID (GBIF)	Not linked to a GBIF record.
PaleoBioDB ID (PBDB)	137744	https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=137744

Rank

order (PBDB)

Taxonomy (PBDB)

Life : Animalia : Chordata : Mammalia : Deltatheroida

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

Opinions (PBDB)

Name	Rank	Opinion	Evidence	Author
Deltatheroida	order	belongs to Tribosphenida	stated with evidence	Cifelli, 1993
Deltatheroida	order	belongs to Mammalia	stated without evidence	Averianov, 1997
Deltatheroida	order	belongs to Metatheria	stated without evidence	Kielan-Jaworowska et al., 2004
Deltatheroida	order	belongs to Metatheria	stated with evidence	Archibald and Averianov, 2005
Deltatheroida	order	belongs to Metatheria	stated without evidence	Davis et al., 2008
Deltatheroida	order	belongs to Metatheria	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

omnivore (based on Metatheria)

Reproduction

viviparous (based on Theria)

Taphonomy

phosphatic (based on Vertebrata)

Primary Reference (PBDB)

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

Fossil Distribution

Subtaxa

Name	Status	Fossil Occurrences	Oldest	Youngest
Deltatheridiidae ✝ family	accepted (GBIF) listed (PBDB)	31	125 Ma Early/Lower Cretaceous	58.7 Ma Paleocene
Deltatheroides ✝ genus	accepted (GBIF) listed (PBDB)	2	83.5 Ma Late/Upper Cretaceous	70.6 Ma Late/Upper Cretaceous
Khuduklestes ✝ genus	accepted (GBIF) listed (PBDB)

Synonymy List

Year	Name and Author
1982	Deltatheroida Kielan-Jaworowska
1993	Deltatheroida Cifelli p. 9415
1997	Deltatheroida Averianov p. 246
2004	Deltatheroida Kielan-Jaworowska et al. pp. 411, 443-445
2005	Deltatheroida Archibald and Averianov
2008	Deltatheroida Beck et al. p. 749
2008	Deltatheroida Davis et al. p. 8
2011	Deltatheroida Davis and Cifelli p. 443
2015	Deltatheroida Bi et al.

References

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

Cifelli R. L. (1993) Early Cretaceous mammal from North America and the evolution of marsupial dental characters, Proceedings of the National Academy of Sciences, USA 90 20, 9413-9416

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

Beck R. M. D., Archer M., et al (2008) A bizarre new family of Marsupialia (Incertae sedis) from the Early Pliocene of northeastern Australia: implications for the phylogeny of bunodont marsupials, Journal of Paleontology 82 4, 749-762 doi:10.1666/06-124.1

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

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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