TY - JOUR AU - RIGNEY, H., W. AB - Abstract Morganucodon is a triconodont (atherian) mammal from the Lower Jurassic. Two species are described: M. oehleri from China and M. watsoni from Wales. The skull in M. watsoni is 26 mm long; M. oehleri is slightly larger. The dentition is differentiated functionally into incisors, canines, premolars and molars. The pineal foramen is closed. The prefrontals, postfrontals and postorbitals are lost. Septomaxilla, quadratojugal, tabular and pterygoid flanges are retained. The bony external nares are unpaired. The nasal cavity had the mammalian complement of turbinals. The posterior palate has ridges and troughs similar to those in tritylodonts, triconodonts and multituberculates. The alisphenoid ascending process is narrow and is not in contact with the anterior lamina of the petrosal, lying lateral to it. There is a cavum epiptericum, as in late therapsids. 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OpenURL Placeholder Text WorldCat This content is only available as a PDF. TI - The skull of Morganucodon JO - Zoological Journal of the Linnean Society DO - 10.1111/j.1096-3642.1981.tb01127.x DA - 1981-01-01 UR - https://www.deepdyve.com/lp/oxford-university-press/the-skull-of-morganucodon-3afUnhD7Jr SP - 1 EP - 158 VL - 71 IS - 1 DP - DeepDyve ER -