Revision of the Early-Middle Cambrian Lingulida (Brachiopoda) from the Siberian Platform

Based on Yu.L. Pelman’s lingulid collection and our own material, the Early-Middle Cambrian genus Eoobolus, which was widespread on the Siberian Platform, is revised. The Siberian members of this genus have previously been assigned to Lingulella. Two out of these six members are recognized as valid species: Eoobolus siniellus (Pelman) and E. variabilis (Pelman). Lingulella acuta Pelman and L. linguata Pelman are considered here to be junior synonyms of E. priscus (Poulsen, 1932). The valid species are redescribed and their stratigraphic and geographic ranges are given. A new species, E. pelmani sp. nov., is described. New data on the Eoobolus microornamentation and shell structure are provided.     

Trilobites of the suborder Eodiscina from the Lower Cambrian of the northeastern Siberian platform (Khorbosuonka River section)

Trilobites of the suborder Eodiscina from the Lower Cambrian section of the Khorbosuonka River (Siberian Platform, Olenek Uplift) are studied. The stratigraphic distribution of these forms in the section is shown Two new species, Hebediscus sublongus sp. nov. and Korobovia khorbosuonica sp. nov., are described. This is the first occurrence of the genus Korobovia on the Siberian Platform. The new record provides additional data on morphology and expands the paleogeographic range of the genera represented by the newly described species.     

On the First Finds of the Genus <Emphasis Type="Italic">Djanaliparkinsonia</Emphasis> (Stephanoceratidae,Ammonoidea) in the Upper Bajocian of the Northern Caucasus

The genus Djanaliparkinsonia Kutuzova, 1975 was originally described as an endemic subgenus of the genus Parkinsonia (family Parkinsoniidae of the superfamily Perisphinctoidea) from the Upper Bajocian (middle member of the Degibadam Formation) of the Gissar Range (Uzbekistan). A new species D. alanica sp. nov. is established from the Upper Bajocian Garantiana garantiana Zone (upper member of the Djangura Formation) based on occurrences in the Northern Caucasus (Karachay-Cherkessia). Macroconchs and microconchs of the new species are described from the two localities on the Kuban and Kyafar rivers. Djanaliparkinsonia sp. is identified from the lower subzone of the Parkinsonia parkinsoni Zone of the Kyafar River. The species composition and geographic range of Djanaliparkinsonia are expanded: a species previously described from Germany as Garantiana bentzi Wetzel, 1954 also assigned to the genus. The genus Djanaliparkinsonia is assigned to the subfamily Garantianinae of the family Stephanoceratidae (superfamily Stephanoceratoidea).     

Genus <Emphasis Type="Italic">Eckhardites</Emphasis> Mitta (Cardioceratidae,Ammonoidea) from the Lower Callovian of the subboreal Jurassic

The genus Eckhardites Mitta 1999, with the type species Macrocephalites pavlowi Smorodina, 1928 is discussed and its diagnosis and assignment to the family Cardioceratidae are substantiated. Eckhardites is compared to the genus Macrocephalites Zittel (family Sphaeroceratidae), to which some workers presently assign the type species of Eckhardites. Three species of Eckhardites are recorded from the basal Callovian elatmae Zone of the Russian Platform, one of which (E. menzeli (Mönnig)) was originally described from the synchronous beds in Germany. A new species E. dietli sp. nov. is described.     

The discovery of Eifelian ammonoids in the Central Kyzylkum Desert (Aristantau Mountains,Uzbekistan)

Eifelian ammonoids are described for the first time from the Central Kyzylkum Desert (Uzbekistan, Navoiy Region, Aristantau Mountains). The ammonoid assemblage includes the typical Eifelian genera Fidelites, Subanarcestes (a new species S. aristanensis Nikolaeva sp. nov. is described), and Cabrieroceras, found in association with brachiopods, conodonts, and dacryoconarids. The ammonoid assemblage is similar to that from the Chote? beds of Barrandien and their equivalents in the Urals, Salair, Germany, and Morocco (Subanarcestes macrocephalus Zone), suggesting a connection between the Eifelian Kyzylkum Basin, which was part of the Turkestan Paleoocean, and European, North African, Siberian, and Uralian basins. The ammonoids studied are not associated with black shale and apparently existed in normal marine environments.     

Morphogenesis,origin, and paleoecology of the bryozoans of the family Medvedkellidae fam. nov. (Upper Carboniferous,East European Platform)

A new family of the order Rhabdomesida, Medvedkellidae fam. nov., is described. This family consists of a new genus, Medvedkella gen. nov., comprising three species transferred from the genus Rhombopora Meek, 1872: the type species M. riasanensis (Schulga-Nesterenko, 1955), M. diaphragmata (Schulga-Nesterenko, 1955), and M. mariae (Dunaeva, 1961). The morphogenesis of the first two species is studied. For the first time axial zooecia are revealed in the suborder Golgdfussitrypina, which existed in parallel with the suborder Rhabdomesina of the order Rhabdomesida. A hypothesis that the new family evolved from the subfamily Nicklesoporinae Gorjunova, 1985 of the family Goldfussitrypidae, 1985 is proposed. Some questions of the ecological adaptation of these bryozoans in the Late Carboniferous marine basin of the East European Platform are discussed.     

Evolution of the Permian family Spirolegoceratidae (Goniatitida,Ammonoidea)

The evolution of the Permian ammonoid family Spirolegoceratidae is discussed and a new phylogenetic reconstruction is proposed based on new data. Two subfamilies are recognized within the family Spirolegoceratidae: Spirolegoceratinae Nassichuk and Sverdrupitinae subfam. nov. A new genus, Archboldiceras, is proposed to accommodate the Australian species Uraloceras lobulatum and U. whitehousei. Species of the genus Sverdrupites Nassichuk, 1970 are described based on new material from the Volga-Urals Region. The new species S. bogoslovskayae from the Gerkinskaya Formation of Novaya Zemlya previously identified by M.F. Bogoslovskaya as S. amundseni is described.     

A synopsis of gall midges associated with conifers,with description of a new species of the genus <Emphasis Type="Italic">Kaltenbachiola</Emphasis> Hedicke (Diptera,Cecidomyiidae: Lasiopterinae) from Yakutia,damaging cones of the Siberian spruce (<Emphasis Type="Italic">Picea obovata</Emphasis>)

The world fauna comprises 134 species from 52 genera of gall midges associated with plants of the order Pinales (3 families, 16 genera and 74 species); 14 genera are specific to Pinales. The distribution of genera and species of gall midges over host plant taxa is described. The Holarctic genus Kaltenbachiola comprises four species all developing in the spruce (Picea spp.) cones. Earlier, K. strobi (Winnertz), widely distributed in Europe, was the only species known in the Palaearctic. A new species Kaltenbachiola anastasiae sp. n. is described, which damages cones of Picea obovata in Central Yakutia. The phylogenetic relationships of Kaltenbachiola with close genera specific to Pinales are characterized, and an updated diagnosis of the genus with additional morphometric parameters and keys to the pine-specific genera of the tribe Dasineurini and to species of the genus Kaltenbachiola are given. The host associations and specific traits of biology and distribution of Kaltenbachiola species are considered.     

Loaches of the genus <Emphasis Type="Italic">Barbatula</Emphasis> (Nemacheilinae) of the Zavkhan River basin (Western Mongolia)

Two sympatric species of Siberian loaches are recorded in the Zavkhan River basin (Great Lakes Depression, Western Mongolia) and described as new for science: Barbatula conilobus and B. dsapchynensis spp. n. The former species, most likely, is widely distributed over the entire river basin, and the latter species, apparently, occurs locally, but in sympatry with B. conilobus. Morphological differences of the new species from other representatives of the genus Barbatula and their relationships are analyzed. Ecological distinctions between the species of the genera Barbatula and Triplophysa in the Zavkhan River basin are described. Possible mechanisms of development of the present fauna of loaches in Mongolia and adjacent territories with an appearance of sympatric species pairs in a single water basin are discussed.     

Parasitic dinoflagellates and ellobiopsids (Ellobiopsidae) of the coastal waters of the sea of Japan

Five species of parasitic dinoflagellates of the genera Protoodinium, Paulsenella, Duboscquella, Syndinium, and Dissodinium and two species of ellobiopsids of the genus Ellobiopsis are described. Figures and distribution data are provided. All species, except for Dissodinium pseudolunula Swift ex Elbrachter et Drebes, are first records for the Russia Far-Eastern seas.     

Gall midges of the supertribe Stomatosematidi (Diptera,Cecidomyiidae) in the Palaearctic Region,with descriptions of new taxa from the Late Eocene Rovno amber: 1. <Emphasis Type="Italic">Stomatosema,Vanchidiplosis, Clarumreddera</Emphasis> gen. n.

Three recent genera are included in the supertribe Stomatosematidi: Stomatosema (16 species), Vanchidiplosis (4 species), and Didactylomyia (3 species). Seven species of the genus Stomatosema and two species of the genus Vanchidiplosis occur in the Palaearctic Region. No reliable findings of representatives of the supertribe were known in fossilized condition. One new genus and 3 new species are described from amber of the Late Eocene age (Rovno Region): Stomatosema iljieteugeniae sp. n., Clarumreddera korneyevi gen. n. et sp. n., and C. conceptiva sp. n.     

Brachiopods of the family Linoproductidae from the Kasimovian Stage of the Moscow Region

Brachiopods from the Kasimovian Stage of the Moscow Region that for more than 70 years were referred to the genus Linoproductus (family Linoproductidae) are revised and redescribed. New characters connected with the ornamentation and inner structure of the dorsal valve are used for the first time in the analysis of the taxonomic structure of the group. Six species from three genera are described; four of them are new: one species of Linispinus Lazarev, 2006, three species of Linipalus Lazarev, 2007, and two species of Sublinoproductus gen. nov. The new genus is considered to be transitional between the genera Linispinus and Linoproductus.     

On the taxonomy of the Paleozoic red algae of the family Ungdarellaceae

The history of the genus Ungdarella and the family Ungdarellaceae is discussed. Data on thallus morphology in members of the family are analyzed. Three new genera, Ungdarelloides, Urtasimella, and Suundukella, and a new species of the genus Ungdarella, U. mitchaelensis sp. nov., are described. The type localities of these taxa are briefly outlined. All these taxa come from Middle Carboniferous carbonate rocks of the Subpolar and Southern Ural Mountains.     

Representatives of the family Bochianitidae (Ammonoidea) from the Lower Cretaceous of the Crimean Mountains

The heteromorph ammonites of the family Bochianitidae from the Lower Cretaceous of the Crimean Mountains are revised. The validity of the genus Janenschites, separated from the genus Bochianites is confirmed. The species Bochianites neocomiensis (d’Orbigny), B. goubechensis Mandov, B. levis sp. nov. and B. crymensis sp. nov. are described from the Berriasian and the species Janenschites oosteri (Sarasin et Schöndelmayer) and J. incisus sp. nov. are described from the Lower Barremian. The family Bochianitidae first appeared at the beginning of the Berriasian in the southern regions (Africa and the Crimea), and spread to the northern regions of western Europe in the Valanginian-Hauterivian.     

Revision of the shield-bug genera <Emphasis Type="Italic">Holcostethus</Emphasis> Fieber and <Emphasis Type="Italic">Peribalus</Emphasis> Mulsant et Rey (Heteroptera,Pentatomidae) of the Palaearctic Region

A complex of the heteropteran genera centering around Peribalus Mulsant et Rey and Holcostethus Fieber is considered. The genus Dryadocoris Kirkaldy reveals no relationship with the above genera and is believed to represent a separate clade of the family Pentatomidae. The genera Peribalus and Holcostethus are revised. The former includes three subgenera: Peribalus s. str. with two species, Asioperibalus subgen. n. (type species Cimex inclusus Dohrn) with six species, and Tianocoris subgen. n. (type species Holcostethus manifestus Kiritshenko) with two species. Holcostethus embraces two subgenera: Holcostethus s. str. and the monotypic Enigmocoris subgen. n. (type species H. fissiceps Horváth). Two new species are described: Peribalus tianshanicus sp. n. from the Tien Shan Mts. and P. przewalskii sp. n. from the northern part of China (Huan He River). P. capitatus Jakovlev and P. vernalis (Wolff) are downgraded to subspecies of P. strictus (F.). P. ovatus Jakovlev is synonymized with P. inclusus (Dohrn). Two new monotypic genera related to the revised complex of genera are established, Paraholcostethus gen. n. (type species Peribalus breviceps Horváth) and Himalayastethus gen. n. (type species H. pilosus sp. n. from Kashmir). A key to, and morphometric characters for all the taxa considered are provided. The key characters, including both male and female genitalia, are illustrated, and distributional maps are given.     

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.     

New ideas on the system of the Permian <Emphasis Type="Italic">Inoceramus</Emphasis>-like bivalves of the eastern Boreal zone

New concepts of systematics and phylogeny of the Permian Inoceramus-like bivalve mollusks of the eastern part of the Boreal zone are discussed based on analysis of the group’s historical development. All taxa studied are referred to the family Kolymiidae Kusnezov, which is divided into two subfamilies, Kolymiinae and Atomodesmatinae. In the subfamily Kolymiinae, two new genera are described: Praekolymia with the type species P. archboldi sp. nov. and P. urbajtisae sp. nov., and Taimyrokolymia with the type species T. ustritskyi sp. nov. In the subfamily Atomodesmatinae, two new genera, Costatoaphanaia and Okhotodesma, are described. The development of the group is shown to be generally autochthonous with some invasions (genus Atomodesma and, probably, Trabeculatia) from extraboreal regions.     

<Emphasis Type="Italic">Subsessila turbinata</Emphasis> gen. et. sp. nov. (Beltraniaceae), a <Emphasis Type="Italic">Beltrania</Emphasis>-like fungus from Thailand

A new monotypic Beltrania-like genus, Subsessila, with its type species S. turbinata, is described, illustrated and compared with similar genera. The new genus is introduced in the family Beltraniaceae based on phylogenetic analysis and morphological characters. Subsessila can be easily distinguished from other Beltrania-like genera by dark setae arising from radially lobed basal cells, mostly lacking macronematous conidiophores. Conidiogenous cells are ampulliform or doliiform and produce turbinate to clavate conidia with rostrate proximal end and rounded distal end. Evidence for establishment of the new genus is provided based on morphological comparison and DNA sequence data analyses.