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The skull of Morganucodon
Two species of triconodont (atherian) mammal from the Lower Jurassic are described: M. oehleri from China and M. watsoni from Wales; the systematic position of Morganucodon is discussed.
The lower jaw of Morganucodon
The genus Morganucodon is found in Yunnan, China, in normal (non-karstic) sedimentary deposits of probable Rhaetian age; and in Wales in karstic deposits in the Carboniferous Limestone, which cannot be younger than Sinnemurian or older than Rhaetic.
A discoglossid frog from the Middle Jurassic of England
A discoglossid frog, Eodiscoglossus oxoniensis sp. nov. is described from the Upper Bathonian Forest Marble of Oxfordshire. It closely resembles Eodiscoglossus santonjae from the Jurassic-Cretaceous
A new docodont from the Forest Marble
The new docodont is remarkable in having a well-defined ‘pseudotalonid’ lying mesial to the “trigonid”, and the upper molars are functionally similar to the quadritubercular molars of the Placentalia.
The Welsh pantothere Kuehneotherium praecursoris
The molars are tritubercular, with a lingual cingulum in the uppers and a tiny talonid with a large hypoconulid in the lowers, and the molars and premolars do not appear to intergrade.
Aegialodon dawsoni, a new trituberculosectorial tooth from the Lower Wealden
A new mammalian tooth from the Lower Wealden bone-bed at Cliff End, near Hastings, has a trituberculate structure with a well-developed talonid and the nature of the wear shows that a true protocone must have been present in the upper molars.
The ear in mammal-like r eptiles a n d early mammals and high frequency h earin g w a s essen tial for the noctu r n a l mode of life, both in hi gh frequency r esp onse a nd In the r a nge of frequencies en c om p assed.
The jaw articulation of the Docodonta and the classification of Mesozoic mammals
  • K. Kermack, F. Mussett
  • Biology, Environmental Science
    Proceedings of the Royal Society of London…
  • 4 December 1958
Comparison with the most advanced of the mammal-like reptiles shows that this groove must have been for the malleus (articular), which in Docodon and in Morganucodon still functioned as part of the jaw articulation, although in both the main part of this hinge would have been formed by the well-developed mammalian condyle on the back end of the dentary.