A new genus <Emphasis Type="Italic">Acupipora</Emphasis> gen. nov. from the upper carboniferous of the East European platform and problem of classification of bryozoans of the order Fenestellida

The species composition of the bryozoan genus Paucipora Termier et Termier, 1971 is revised. A new species, Paucipora akishinensis sp. nov., and a new genus, Acupipora gen. nov., with the type species Polypora subborealis Schulga-Nesterenko, 1951, are described. The problems of classification of the order Fenestellida are discussed. Criteria for the division of the order into families and subfamilies are developed. The evolution of fenestellids is shown to proceed along the path of morphological differentiation of structural elements of colonies, polymerization of autozooecia, and formation of heterozooecia. It was accompanied by morphological parallelisms. A scheme of the phylogenetic relationships between the families and subfamilies of the order is presented.     

New bryozoans from the Devonian of Afghanistan and the Carboniferous of Iran

A new family, Vidronovellidae, with a new genus, Vidronovella, and its type species V. fastigata sp. nov., and a new species, Europora gerirudensis, are described from the Famennian of Afghanistan, and the new species Primorella iranica, Heloclema magnificum, and Worthenopora elbursensis are described from the Viséan of Iran.     

A new genus of the Arenigian bryozoans, <Emphasis Type="Italic">Lynnopora</Emphasis>, and its systematic position in the family Revalotrypidae Gorjunova, 1988

A new genus Lynnopora gen. nov. with the type species L. lunata sp. nov. and a new species Revalotrypa krestensis Koromyslova sp. nov. from the Arenigian Stage (Latorp and Volkhov horizons) of the Ordovician of the Leningrad Region are described. The positions of the genus Revalotrypa Bassler, 1952 and the family Revalotrypidae Gorjunova, 1988 in the order Cystoporida are substantiated. The problems of biogeography and ecological adaptations of bryozoans of the family Revalotrypidae are discussed.     

Carboniferous bryozoans of the order Rhabdomesida of the East European Platform

This paper deals with the revision of Carboniferous bryozoans of the order Rhabdomesida from the East European Platform. Based on evolutionary and morphological analysis and on astogenetic method, the criteria of classification are refined and the taxonomic system of Carboniferous rhabdomesids of this region is studied in more detail. The history of studying rhabdomesids, their taphonomy and paleoecology, morphology and classification, and the dynamics of the diversity and phylogenetic relationships of rhabdomesid genera and species are discussed. A phenomenon of polymerization in the development of the subfamily Ascoporinae Gorjunova subfam. nov. has been discovered for the first time. Sixty-eight rhabdomesid species (31 new), 24 genera (8 new), belonging to six subfamilies (one new), eight familie, and three suborders are described.     

New cryptostomide bryozoans from the Upper Devonian of Transcaucasia and some aspects of the evolution of the order Cryptostomida

New bryozoans of the suborder Ptilodictyina of the order Cryptostomida are described from the Upper Famennian of Transcaucasia: those of the family Worthenoporidae, i.e., a genus Geranopora gen. nov. comprising three species G. fabulosa sp. nov. (type species), G. fida sp. nov., and G. finitima sp. nov., and those of a new family Mysticellidae fam. nov., i.e., a genus Mysticella gen. nov. comprising four species M. labyrinthica sp. nov. (type species), M. laudativa sp. nov., M. sacrosancta sp. nov., and M. ortiva sp. nov. Thus, a Late Devonian part of the evolutionary line of ptilodictyines is revealed that shows their radiation at the levels of families, genera, and species.     

Iraida Pavlovna Morozova (1919–2007)

Paleontological Journal -     

On the Paleozoic bryozoans of the genus <Emphasis Type="Italic">Ascopora</Emphasis> Trautschold

Based on the study of the neotype and the astogeny of the type specimens of the species Ascopora nodosa (Fischer von Waldheim, 1837), the diagnosis and species composition of the genus Ascopora Trautschold, 1876 are emended. The genus Ascopora and three species out of the five included in this genus—A. nodosa (Fischer von Waldheim, 1837); A. sokolovae Schulga-Nesterenko, 1955; and A. latiaxis Schulga-Nesterenko, 1955—are described. A new genus, Tetrasella gen. nov., with the type species T. blanda sp. nov. is described. This genus comprises five species, transferred from the composition of the genus Ascopora. An emended diagnosis of the genus Ascoporella Krutchinina, 1986, is provided. This genus comprises nine species, of which two, A. lecta sp. nov. and A. mera sp. nov., are described as new species.     

A contribution to the revision of the genus Fenestella (Bryozoa) from the lower carboniferous of the east European platform

About 50 species of the genus Fenestella from the Lower Carboniferous of the East European platform are revised. They are shown to belong to the following seven genera: Fenestella, Rectifenestella, Laxifenestella, Exfenestella, Fabifenestella, Alternifenestella, and Ignotifenestella. Diagnoses of the three latter genera are given and 11 species are described, including type species, one of which, A. substricta sp. nov., is new. Lectotypes are selected for the three known species A. major (Nikiforova, 1933), A. minor (Nikiforova, 1933), and A. media (Nikiforova, 1927).