Juchilestes

Juchilestes
Temporal range: Early Cretaceous, 123.2 Ma
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Clade: Synapsida
Class: Mammalia
Family: Amphidontidae
Genus: Juchilestes
Gao et al., 2010
Type species
Juchilestes liaoningensis
Gao et al., 2010

Juchilestes is an amphidontid[1] mammal genus from the early Cretaceous (early Aptian stage, 123.2 ± 1.0 Ma). It lived in what is now the Beipiao of western Liaoning, eastern China. It is known from the holotype D2607, which consists of three-dimensionally preserved, partial skull with mandibles and some teeth. It was found in 2004 from the Lujiatun Site of the Yixian Formation (Jehol Biota). It was first named by Chun-Ling Gao, Gregory P. Wilson, Zhe-Xi Luo, A. Murat Maga, Qingjin Meng and Xuri Wang in 2010 and the type species is Juchilestes liaoningensis.[2]

Phylogeny

Cladogram after Thomas Martin et all 2015[3]

 Eutriconodonta 
Amphilestidae

Phascolotherium



Amphilestes





Amphidontidae

Hakusanodon



Juchilestes




Gobiconodontidae

Spinolestes




Gobiconodon



Repenomamus






Jeholodens




Yanoconodon




Liaoconodon



Volaticotheria

Volaticotherium



Argentoconodon



Triconodontidae

Trioracodon




Triconodon




Priacodon




Arundelconodon




Meiconodon




Astraconodon




Alticonodon



Corviconodon

















References

  1. A. V. Lopatin, E. N. Maschenko and A. O. Averianov (2010). "A new genus of triconodont mammals from the Early Cretaceous of Western Siberia". Doklady Biological Sciences. 433 (1): 282–285. doi:10.1134/S0012496610040137.
  2. Chun-Ling Gao, Gregory P. Wilson, Zhe-Xi Luo, A. Murat Maga, Qingjin Meng and Xuri Wang (2010). "A new mammal skull from the Lower Cretaceous of China with implications for the evolution of obtuse-angled molars and 'amphilestid' eutriconodonts". Proceedings of the Royal Society B: Biological sciences. 277 (1679): 237–246. doi:10.1098/rspb.2009.1014. PMC 2842676Freely accessible. PMID 19726475.
  3. Thomas Martin, Jesús Marugán-Lobón, Romain Vullo, Hugo Martín-Abad, Zhe-Xi Luo & Angela D. Buscalioni (2015). A Cretaceous eutriconodont and integument evolution in early mammals. Nature 526, 380–384. doi:10.1038/nature14905


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