The preliminary results of an examination of this Morganucodon material from the fissure fill deposits of Glamorgan, South Wales will be given, with an emphasis on the diversity and replacement morphology.
A morphometric investigation based on approximately 300 dentulous partial dentaries from the large collections of the University Museum of Zoology, Cambridge and the Natural History Museum (London) was conducted. The results show that size in M. watsoni correlates with premolariform tooth resorption in a way that cannot be explained by simple intraspecific variation alone. Two hypotheses as to what may cause the observed variation will be discussed and reference will be made to replacement patterns found in the associated Kuehneotherium material