Аннотация:On the basis of numerous skull bones, elements of the dentition and shoulder girdlews of different growth stages of the dipnoan Andreyevichthys epitomus Krupina (Upper Fammenian, Central Devonian Field) the morphometric study of several structures was carried out. It has been established that during growth the greatest changes took place in the parasphenoid, lower jaw, tooth apparatus, and exoskeletal shoulder girdle. The anterior part of the skull roof of A. epithomus elongeted significantly, the juvenile dentition disappeared, the exoskeletal shoulder girdle developed considerably. Reaching the adult stage, A. epitomus changed its mode of life and feeding mechanism.