Abstract
Microevolutionary trends in Western Palaearctic bats. Case study: microevolutionary trends among bats of Rhinolophus "ferrumequinum" group (Mammalia: Chiroptera) A frecuently recurring tendency in insectivorous bats is the cephalization of he skull. It has been shown that from the early Pliocene onwards, changes which appear to be microevolutionary trends have continued to take place in the skull structure. Some of these trends were analysed, and they were found to consist mainly in the reduction of splanchnocranium: shortening of the palate and of the premolar teethrow (both in the maxilla and the mandible). Postdental part of the mandible becomes shorter.
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