辽宁下白垩统沙海组和阜新组真三尖齿兽类戈壁尖齿兽科新材料

楠桥直, 王元青, 李传夔, 金迅

New gobiconodontid (Eutriconodonta, Mammalia) from the Lower Cretaceous Shahai and Fuxin formations, Liaoning, China

KUSUHASHI Nao, WANG Yuan-Qing, LI Chuan-Kui, JIN Xun

Table 1 Measurements of lower molariforms in the holotype (IVPP V 14511) of Fuxinoconodon changi gen. et sp. nov. and ?Gobiconodontidae gen. et sp. indet. (V 22643) with those of type specimens of other gobiconodontids (mm)

m1 m2 m3 m4 m5 L W H L W H L W H L W H L W H Fuxinoconodon changi IVPP V 14511 3.23* 1.13 2.00 2.99* 1.14 - 3.40 1.15 - 2.87* 1.08 2.16 - - - Gobiconodontidae gen. et sp. indet. 2.55 0.80 2.04 IVPP V 22643* Gobiconodon haizhouensis IVPP V 14509 1.72 0.94 1.85 1.81 0.97 1.85 1.66 0.94 1.88 1.50 0.88 1.50 1.22 0.75 1.22 Gobiconodon tomidai IVPP V 14510 - - - 1.99 0.78 1.44 2.07 0.86 - 2.00 0.79 - - 0.72 - Gobiconodon borissiaki PIN 3101/9 2.8 1.3 - - 1.3 - 2.75 1.5 - 2.7 1.5 - 2.5 1.15 - Gobiconodon hoburensis PIN 3101/24 1.5 0.9 - 1.6 0.9 - 1.6 0.95 - 1.45 0.85 - 1.4 0.65 - Gobiconodon luoianus (41H III-0320) right 3.0 3.5 - left 3.0 2.8 - 3.0 3.2 - Gobiconodon ostromi (MCZ 19965) right 4.75 2.10 - - - - 4.90 2.25 - 4.60 2.40 4.60 4.05 2.30 3.70 left 4.50 2.20 4.55 4.80 - - 4.85 2.75 - - 2.55 - - 2.30 - Gobiconodon zofiae IVPP V 12585 2.30 0.90 - 2.30 0.95 - 2.50 1.05 - 2.55 1.00 - 1.95 0.75 - Meemannodon lujiatunensis IVPP V 13102 5.33 2.90 4.78 6.95 3.30 6.08 7.62 3.56 6.98 7.43 3.69 7.28 - - - Repenomamus giganticus IVPP V 14155 7.5 4.7 - 8.3 5.0 - 8.0 - - 7.5 4.8 - 6.1 4.2 - Spinolestes xenarthrosus MCCMLH30000 2.06 1.14 - 1.77 1.04 -