[dinosaur] Fuxinoconodon, new gobiconodontid mammal from Lower Cretaceous of China (free pdf)

Ben Creisler
[email protected]

A new paper with free pdf:


Fuxinoconodon changi gen. et sp. nov.

KUSUHASHI Nao, WANG Yuan-Qing,  LI Chuan-Kui & JIN Xun (2019)
New gobiconodontid (Eutriconodonta, Mammalia) from the Lower Cretaceous
Shahai and Fuxin formations, Liaoning, China.
Vertebrata PalAsiatica (advance online publication)
DOI: 10.19615/j.cnki.1000-3118.190724
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Eutriconodontans are one of the key members of mammals to our understanding
of the evolution and transition of mammalian fauna in Asia during the
Cretaceous. Two gobiconodontid and two triconodontid species have
previously been reported from the upper Lower Cretaceous Shahai and Fuxin
formations. Here we describe two additional eutriconodontans from the
formations, Fuxinoconodon changi gen. et sp. nov. and ?Gobiconodontidae
gen. et sp. indet. This new species is attributed to the Gobiconodontidae,
characterized by having an enlarged first lower incisor, reduction in the
number of incisors and premolariforms, proportionally large cusps b and c
being well distant from cusp a on the molariforms, presence of a labial
cingulid, and a unique mixed combination of molariform characters seen on
either the first or the second, but not both, generations of molariforms in
Gobiconodon. Together with the four known species, eutriconodontans
remained diverse to some extent in the late Early Cretaceous in Asia,
although their family-level and generic level diversity appears to have
been already reduced at that time.

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