This class includes the eutherians as well as monotremes and marsupials.
Susan Bell and Malcolm McKenna published an influential higher-level taxonomy of this class. The early Jurassic Sinoconodon is one of the most basal members of this class; the therapsids comprise this extant class and its close relatives. This class is distinguished by having a dentary-squamosal jaw joint and three middle ear bones. This class includes the eutherians as well as monotremes and marsupials. For 10 points, name this vertebrate class whose members have hair and produce milk for their young.
Susan Bell and Malcolm McKenna published an influential higher-level taxonomy of this class.
Mammalia [or mammals]