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]S. evansae is also from the Berriasian aged Angeac-Charente bonebed in western France.[5]
Spalacotheriidae
Spalacotherium
Akidolestes
Symmetrolestes
Spalacolestinae
Spalacotheroides
Yaverlestes
Heishanlestes
Lactodens
Spalacotheridium
Spalacolestes
Symmetrodontoides
^ abcAverianov, 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 (4): 311–326. Bibcode:2013NW....100..311A. doi:10.1007/s00114-013-1028-3. PMID 23494201. S2CID 18504005.
^Ensom, P.C.; Sigogneau-Russel, D. (2000). "New symmetrodonts (Mammalia, Theria) from the Purbeck Limestone Group, Lower Cretaceous, southern England" (PDF). Cretaceous Research. 21 (6): 767–779. doi:10.1006/cres.2000.0227.
^Gill, P. (2004). "A new symmetrodont from the Early Cretaceous of England" (PDF). Journal of Vertebrate Paleontology. 24 (3): 748–752. doi:10.1671/0272-4634(2004)024[0748:ANSFTE]2.0.CO;2. S2CID 86736277.
^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 (2): 343–380. doi:10.1111/zoj.12416.
^Ronan Allain, Romain Vullo, Lee Rozada, Jérémy Anquetin, Renaud Bourgeais, et al.. Vertebrate paleobiodiversity of the Early Cretaceous (Berriasian) Angeac-Charente Lagerstätte (southwestern France): implications for continental faunal turnover at the J/K boundary. Geodiversitas, Museum National d’Histoire Naturelle Paris, In press. ffhal-03264773f
Spalacotherium is a genus of extinct mammal from the Early Cretaceous of Europe. The type species Spalacotherium tricuspidens was originally named by Richard...
closer to Mus musculus (the house mouse) than to the "symmetrodont" Spalacotherium tricuspidens. Cladotheria incorporates a set of nested mammal clades...
(a Triassic cynodont); 3, Microconodon (a Triassic eucynodont); 4, Spalacotherium (a Cretaceous "symmetrodont"); 5, Amphitherium (a Jurassic prototribosphenid...
indicating that they had a modern ear anatomy. Akidolestes Infernolestes Spalacotherium Symmetrolestes Spalacolestinae Aliaga Heishanlestes Lactodens Shalbaatar...
crocodyliform Goniopholis and the mammals Loxaulax, Aegialodon, Laolestes, and Spalacotherium. Mantell, G.A., 1822, The fossils of the South Downs or Illustrations...
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