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Temporal range: Middle Jurassic - Late Cretaceous, 167–83 Ma
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Eutriconodonta
Family: Triconodontidae
Marsh, 1887
Type species
Triconodon mordax
Owen, 1859

Volaticotheriidae Meng et al., 2006

Triconodontidae is an extinct family of actively mobile mammal, endemic to what would be North America, Europe, Africa and probably also South America and Asia[1][2] during the Jurassic through Cretaceous periods at least from 155.7—70.6 mya (however, if Argentoconodon is indeed a member of the family then it existed as early as Middle, possibly even Early Jurassic[1]), existing for at least 85.1 million years.[3]


Triconodontidae was named by Marsh (1887). It was assigned to Polyprotodontia by Cope (1889); to Triconodonta by Rasmussen and Callison (1981), Bonaparte (1986), Carroll (1988) and Engelmann and Callison (1998); and to Mammalia by Marsh (1887) and Luo et al. (2001).[4]


Cladogram after Marisol Montellano, James A. Hopson, James M. Clark (2008)[5] and Gao et al. (2010).[6]











  1. ^ a b c d e Leandro C. Gaetano and Guillermo W. Rougier (2011). "New materials of Argentoconodon fariasorum (Mammaliaformes, Triconodontidae) from the Jurassic of Argentina and its bearing on triconodont phylogeny". Journal of Vertebrate Paleontology 31 (4): 829–843. doi:10.1080/02724634.2011.589877. 
  2. ^ a b c d Leandro C. Gaetano and Guillermo W. Rougier (2012). "First Amphilestid from South America: A Molariform from the Jurassic Cañadón Asfalto Formation, Patagonia, Argentina". Journal of Mammalian Evolution 19 (4): 235–248. doi:10.1007/s10914-012-9194-1. 
  3. ^ PaleoBiology Database: Triconodontidae, basic info
  4. ^ Luo ZX, Crompton AW, Sun AL (2001). "A new mammaliaform from the Early Jurassic and evolution of mammalian characteristics". Science 292 (5521): 1535–1540. doi:10.1126/science.1058476. PMID 11375489. 
  5. ^ Marisol Montellano, James A. Hopson, James M. Clark (2008). "Late Early Jurassic Mammaliaforms from Huizachal Canyon, Tamaulipas, México". Journal of Vertebrate Paleontology 28 (4): 1130–1143. doi:10.1671/0272-4634-28.4.1130. 
  6. ^ 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.