Juchilestes

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]

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

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. PMID 20711878.CS1 maint: uses authors parameter (link)
  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 2842676. PMID 19726475.CS1 maint: uses authors parameter (link)
  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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