| occlusal pattern of cheek teeth in extant spermophilus: a new approach to the identification of species. | discrete characters of the occlusal surface (additional cusps) have been studied to elaborate a new approach to the identification of the ground squirrel species spermophilus odessanus, s. suslicus, s. pygmaeus, s. citellus, and s. xanthoprymnus. data on the presence/absence of the additional cusps have been represented as star plots and, in addition, have been studied using discriminant function analysis. the species-specific sets of the characters (patterns of bunodonty) have been revealed and ... | 2016 | 27018323 |