[Ontophylogenetic studies of Paleozoic ammonoides].
In this work the main directions of study of ontogeny and phylogeny of Paleozoic ammonoids are discussed, and the results of studies of the Permian families of this subclass are presented. It is shown that the morphogenetic evolution of taxa of different rank is caused by manifestation of major phylogenetic moduses and their various combinations. Thus, development can proceed in the direction of morphological complexity and in the direction of simplification. The conclusion about the role of family in the evolutionary history of ammonoids, which depends on the complexity of its structure, was made: the more complex it is, the greater the perspective taxon can be for formation of new groups of the supraspecific rank.
T B
TB
Leonova
D000818:Animals; D005075:Biological Evolution; D049830:Cephalopoda / Q000145:classification* / Q000254:growth & development* / Q000648:ultrastructure; D005580:Fossils; D009024:Morphogenesis; D010163:Paleontology; D010802:Phylogeny