Abstract: A new genus and species of gobiconodotid, Meemannodon lujiatunensis, from the basal member of the Early Cretaceous Yixian Formation at Lujiatun locality, Liaoning, northeast China is described. The new genus, Meemannodon, differs from other triconodonts but is similar to Gobiconodon in having enlarged i1 , lower incisors reduced to 2 , conical and pointed posterior incisors , canines and anterior premolariforms , premolariforms with a tall central cusp but no accessory cusp , and procumbent i～p1. It differs from Gobiconodon and its close relatives in having more procumbent lower incisors and canines, proportionally larger i1 and smaller i2, lack of diastema between p2 (the last premolariform) and m1, main cusps of molariforms inclined posteriorly , molariform length greater than height , cusp a relatively low compared to distinct cusps b and c, premolariforms reduced , and m1 significantly smaller than m2～m4. It is similar to Repenomamus but further differs from Gobiconodon in lacking the cingulid on lower molariforms.