Spalacotherium

Spalacotherium; Temporal range: Berriasian–Barremian PreЄ Є O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	†Symmetrodonta
Family:	†Spalacotheriidae
Genus:	†Spalacotherium; Owen, 1854
Species
	Spalacotherium tricuspidens ; Owen, 1854 (type); Spalacotherium taylori ; Clemens & Lees, 1971; Spalacotherium henkeli ; Krebs, 1985; Spalacotherium evansae ; Ensom & Sigogneau-Russell, 2000; Spalacotherium hookeri ; Gill, 2004;
Synonyms[1]
	Peralestes longirostris Owen, 1871;

Spalacotherium is a genus of extinct mammal from the Early Cretaceous of Europe. The type species Spalacotherium tricuspidens was originally named by Richard Owen in 1854, and its material includes maxillary and dentary fragments and many teeth from the Berriasian Lulworth Formation of southern England. Referred species include S. taylori, S. evansae and S. hookeri also from the Lulworth deposits, and S. henkeli from Barremian deposits of Galve, Spain.[2][3][1] The Lulworth taxon Peralestes longirostris, named by Owen in 1871, is a junior synonym of the type species S. tricuspidens. Spalacotherium is the namesake taxon of the family Spalacotheriidae, which is an extinct clade within Trechnotheria that may be closely related to the Gondwanan clade Meridiolestida,[1] or united with the family Zhangheotheriidae to form Symmetrodonta.[4]

Spalacotheriidae

Spalacotherium

Akidolestes

Symmetrolestes

Spalacolestinae

Spalacotheroides

Yaverlestes

	Heishanlestes

	Lactodens

Spalacotheridium

	Spalacolestes

	Symmetrodontoides

References

Averianov, A.O.; Martin, T.; Lopatin, A.V. (2013). "A new phylogeny for basal Trechnotheria and Cladotheria and affinities of South American endemic Late Cretaceous mammals". Naturwissenschaften. 100: 311–326. doi:10.1007/s00114-013-1028-3.
Ensom, P.C.; Sigogneau-Russel, D. (2000). "New symmetrodonts (Mammalia, Theria) from the Purbeck Limestone Group, Lower Cretaceous, southern England". Cretaceous Research. 21 (6): 767–779. doi:10.1006/cres.2000.0227.
Gill, P. (2004). "A new symmetrodont from the Early Cretaceous of England". Journal of Vertebrate Paleontology. 24 (3): 748–752. doi:10.1671/0272-4634(2004)024[0748:ANSFTE]2.0.CO;2.
Han, G.; Meng, J. (2016). "A new spalacolestine mammal from the Early Cretaceous Jehol Biota and implications for the morphology, phylogeny, and palaeobiology of Laurasian 'symmetrodontans'". Zoological Journal of the Linnean Society. 178: 343–380. doi:10.1111/zoj.12416.

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[averianov2013-1] Averianov, A.O.; Martin, T.; Lopatin, A.V. (2013). "A new phylogeny for basal Trechnotheria and Cladotheria and affinities of South American endemic Late Cretaceous mammals". Naturwissenschaften. 100: 311–326. doi:10.1007/s00114-013-1028-3.

[ensom2000-2] Ensom, P.C.; Sigogneau-Russel, D. (2000). "New symmetrodonts (Mammalia, Theria) from the Purbeck Limestone Group, Lower Cretaceous, southern England". Cretaceous Research. 21 (6): 767–779. doi:10.1006/cres.2000.0227.

[gill2004-3] Gill, P. (2004). "A new symmetrodont from the Early Cretaceous of England". Journal of Vertebrate Paleontology. 24 (3): 748–752. doi:10.1671/0272-4634(2004)024[0748:ANSFTE]2.0.CO;2.

[han2016-4] Han, G.; Meng, J. (2016). "A new spalacolestine mammal from the Early Cretaceous Jehol Biota and implications for the morphology, phylogeny, and palaeobiology of Laurasian 'symmetrodontans'". Zoological Journal of the Linnean Society. 178: 343–380. doi:10.1111/zoj.12416.