Dianoconodon and Feredocodon preserve different jaw-joint and postdentary combinations that support a comparative reduction in load-bearing before complete middle-ear detachment.
Represented range201.4–161.5 Ma
RegionsLufeng Formation, Yunnan, and Daohugou Beds, Inner Mongolia, China
Jaw and postdentary anatomy in Dianoconodon IVPP V4257 and Feredocodon IMMNH-PV01925 supports a comparative reduction of articular–quadrate load-bearing before complete middle-ear detachment, but function is inferred and the specimens are not an ancestor–descendant pair.