The domestic dog (Canis familiaris) constitutes a species that has attained considerable variability in historic times. The crania and dentition of a sample of the domestic dog Canis familiaris have been statistically analyzed with methods that have been employed to determine variability in other species. The results point to a degree of variation in the dog crania and dentition that may be a useful tool for creationists in determining the boundaries of the holobaramins (created kinds). The results obtained from dog crania do not support the division of Homo erectus into two, or more, different species, but are compatible with the hypothesis that they are all part of one species. Variability in the cranium and dentition of this living monobaramin (Canis familiaris) suggest that H. erectus, archaic H. sapiens fossils of diverse origin, and H. sapiens sapiens should be lumped into one kind (holobaramin1). The degree of morphological variability in domestic dogs is an important tool for assessing the variability of extinct kinds, and the limits of morphological variability within living beings.