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EN
All specimens assigned by Gorskiy (1932) to the genus Lophophyllum Milne Edwards and Haime, 1850 are revised, redescribed and reillustrated. The corallite identified by him as a second, specifically indeterminate species of Lophophyllum is here questionably included in Amygdalophyllum Dun and Benson, 1920. For the reminding specimens two new, unnamed genera are suggested. ”Lophophyllum” subtortuosum Gorskiy, 1932 belongs to a new, non-dissepimented genus of an unknown family. A possible relationship between gen. nov. 1, sp. nov. 1 and the new Bashkirian genus from the Donets Basin (Ukraine) is proposed.
EN
Four genera (one new, one questionable), seven named species (five new) and five taxa left in open nomenclature are described from uppermost Serpukhovian (Limestone D53) to middle Bashkirian (Limestone G11) strata. A new genus: Nina and the new species: Bothrophyllum kalmyussi, B. gorbachevensis, Nina donetsiana, N. dibimitaria and N. magna are introduced. The genus Cystilophophyllum Fomichev, 1953 is redefined and transferred to the Family Bothrophyllidae. Three general topics discussed in the Considerations are: 1. The taxonomic value of the microstructure of the septa and the necessity for a distinction between that character and diagenetic alterations; 2. Depositional conditions, under which the rugose coral skeletons were deposited; 3. The similarity of skeletal constructions vs. relationships in some taxa of the Subfamily Dibunophyllinae Wang, 1950 and the Family Bothrophyllidae Fomichev, 1953. The lack of final conclusions in the matter of the relationships is due to the incompleteness and restricted number of specimens studied herein and the incomplete investigations of a great majority of the earlier described bothrophyllid taxa.
EN
Seven genera (one new), belonging to four subfamilies, seven named species (six new), four species left in open nomenclature and two specimens included in this paper as unnamed Aulophyllidae are described from strata ranging from the lowermost Bashkirian Limestone D510 to the lower Bashkirian Limestone F1. A new genus: Voragoaxum and six new species: Dibunophyllum medium, Dibunophylloides columnatus, D. paulus, D. similis, Voragoaxum cavum and Rozkowskia lenta are introduced. Comparison of the ontogeny of the earliest Bashkirian species of Nina Fedorowski, 2017a and Dibunophylloides Fomichev, 1953 suggest the derivation by descent of the Family Bothrophyllidae from the Subfamily Dibunophyllinae. This means that true bothrophylla are absent in the Mississippian strata of the Western European Province and, perhaps, in the contemporaneous strata of other areas as well.
EN
The rugose coral genus Bothrophyllum Trautschold, 1879 is revised on the basis of data from the literature and the author’s personal investigation of both topotypes of its type species B. conicum and related and/or similar taxa from other areas. The intraspecific variability of the type species, its neotype, the intra-generic framework and a new generic diagnosis are established. Many more than 100 taxa related and/or similar to Bothrophyllum were analyzed and the most important of them are discussed. Detailed analysis of the type species based on the neotype and supported by additional topotype specimens illustrated here, allows restriction of both the type species and the genus, and leads to the proposition that Bothrophyllum-like taxa with a shortened cardinal septum should be considered of subgeneric (not named) status. Detailed analysis of the specimens and species described and illustrated from the type site (Myachkovo Quarry, Moscow Basin) form the basis for further considerations. On the basis of that analysis and characters established for the type species, taxa from all other European, African, Asiatic and North American areas either named Bothrophyllum or bearing characters of that genus were analyzed. The supposed origin and discussion of the relationships conclude the paper. A list of synonyms and exclusions from Bothrophyllum and lists of species included, excluded, or possibly belonging to Bothrophyllum and Bothrophyllum-like corals with a shortened cardinal septum are presented.
EN
Sixteen rugose coral species, two known previously, nine new, three left in open nomenclature, and two identified as affinis, are described from the early Serpukhovian strata of the Lublin area, eastern Poland. Rugose corals of that age here are described for the first time from Poland. New genera include Birkenmajerites, Chelmia and Occulogermen. New species include: Axisvacuus tenerus, Birkenmajerites primus, Chelmia radiata, Nervophyllum lukoviensis, Occulogermen luciae, Rotiphyllum plumeum, Sochkineophyllum symmetricum, Zaphrentites rotiphylloides and, Zaphrufimia anceps. A brief analysis of the taphonomy, possible relationships and geographical connections of the corals described here to rugose coral faunas from adjacent areas also is included.
EN
Two species, Antiphyllum sp. nov. 1 and Zaphrufimia sp. nov. 1, the first corals found in Štur horizon of the upper Malinowickie Beds, Upper Pendleian (E1), are here described. Additional study of the subspecies of Zaprufimia disjuncta show them to be more similar than previously thought. Although they occur mainly in the Enna and Barbara horizons, one specimen of Z. d. serotina comes from the Gabriela horizon. Biozone Zaphrufimia disujncta disjuncta/Z .d. praematura is proposed for the Enna and Barbara horizons. The subzone of Zaphrufimia/Triadufimia of that Biozone, defined by the presence of Triadufimia gen. nov., is restricted to the Enna horizon. As confirmed by the occurrence of Cravenoceratoides edalensis, the new subzone roughly corresponds to the E2b1 ammonite Zone. An Antiphyllum/Ostravaia/Variaxon assemblage Zone is proposed for the coral assemblage of the Gaebler horizon. Cravenoceratoides nitidus present in the Roemer band (Ib) shows it to correlate with the E2b2 ammonite Zone. Comparison with other European regions suggests possible faunal exchange between those areas and the Upper Silesian Coal Basin in Serpukhovian time.
EN
Two new species of the genus Vojnovskytes Fedorowski, 2009, namely V. marcinowskii and V. arcuatus, and a new genus, Vojnimitor, based on the new species V. proiectus, all from Mississippian strata of northern Spain, are described. Vojnovskytes variabilis (Vojnovsky-Krieger, 1934), the type species for the genus from the lowermost Viséan strata of southern Urals, also is discussed and illustrated. Characters displayed by the taxa mentioned permit introduction of a new family Vojnovskytesidae.
EN
Cordibia pumila gen. et sp. nov. (Aulophyllidae, Dibunophyllinae) from the Lower Bashkirian E1 Limestone of the Donets Basin, Ukraine is described. The term "protocolony" is formally defined as a growth form intermediate between the solitary and colonial. Protocolonies consist of protocorallites and verticils of non-reproductive offsets [i.e., the lost structures]. The early ontogeny of a protocorallite is compared to the blastogeny in the same species in order to establish characters in common during both processes and to document the usefulness of blastogeny for phylogenetic reconstructions. The short duration and abundance of the occurrence (Limestones E1up acme, E11) of that species also makes it a good marker for the lowest Feninian (= Krasnopolyanian) strata in the Donets Basin.
EN
The rugose coral specimens included by Schindewolf (1952) in the genera Claviphyllum Hudson, 1942, Fasciculophyllum Thomson, 1883 and Pentaphyllum (Tachylasma) Grabau, 1922 are revised on the basis of the original collection. The first two taxa are included in Antiphyllum Schindewolf, 1952, either in its original sense or in its newly introduced subgenus Antiphyllites. The new genus Effigies is introduced for Pentaphyllum (Tachylasma) silesiacumcussed. New, detailed descriptions of species are supplemented by text-figures in order to document their intraspecific variability and phylogenetic relationships.
EN
The genus Cyathaxonia Michelin, 1847 is determined to be one of only two possible genera belonging in the family Cyathaxonidae Milne Edwards and Haime, 1850. This detailed study of a new species, Cyathaxonia nodosa, proves the origin of the columella independent of major septa, as demonstrated in crossed nicols. The inner margins of the major septa retreat from the corallite axis in the late neanic growth stage. The presence of a circulotheca is considered to be an important feature of this genus. Barytichisma represented by Barytichisma sp, is placed in the family Stereophrentidae Fomichev, 1953.
11
EN
Two genera from Upper Serpukhovian strata in the Czech Republic part of the Silesian Coal Basin are described and figured. Ostravaia gen. nov., included in Ostravaiainae subfam. nov., may belong to the Family Antiphyllidae Ilina, 1970. It is represented by one, morphologically variable new species, O. silesiaca. Two other species, conditionally included in that genus, are left in open nomenclature. Variaxon gen. nov., included in Variaxoninae subfam nov. of an undetermined family, is represented by two species, one of which, V. radians, is new.
EN
Five species belonging to two genera: Falsiamplexus Fedorowski, 1987 and Axisvacuus gen. nov. are described in detail and their species content and relationships are discussed. Both genera are perhaps related to Rotiphyllum and were probably derived from it, but relationship of Falsiamplexus to Bradyphyllum Grabau, 1928 cannot be excluded. The new genus Axisvacuus is represented by four species, of which three are new: A. verus (type species), A. extendus and A. semicirculatus. Stratigraphic ranges of species described are compared to the western European and Russian standards (Table 1). Some possible palaeogeographic implications of the occurrence of Axisvacuus postumus (Smith, 1931) and Falsiamplexus reductus Fedorowski, 1987 are briefly discussed.
EN
The present paper is the first in a series devoted to the Early Bashkirian Rugosa (Anthozoa) from the Donets Basin. The history of investigation and current status of Early Bashkirian stratigraphy is discussed in the context of the Donets Basin strata. Corals of that time interval are extremely rare worldwide and those from the Donets Basin have never been described in detail. Four of the five species described are new: Rotiphyllum asymmetricum sp. nov., R. latithecatum sp. nov., R. simulatum sp. nov., and R. voznesenkae sp. nov. Two species are left in open nomenclature. The synonymy, species content and critical review of species potentially belonging to the genus Rotiphyllum are reviewed.
EN
The sparse, Wordian rugose coral fauna of the Degerbols and Trold Fiord formations consists exclusively of nondissepimental, solitary taxa and includes the youngest Permian corals in the Sverdrup Basin. Similar, approximately coeval, Guadalupian coral assemblages are widespread in the youngest coral-bearing deposits of the Calophyllum Province in the northern Cordilleran-Arctic-Uralian Realm. The described Sverdrup Basin fauna includes eight species (four new) belonging to the genera Allotropiochisma, Calophyllum, Euryphyllum, Lytvolasma, Soshkineophyllum and Ufimia. Revision of several previously described from East Greenland clarifies their taxonomy and emphasizes the similarity between that fauna and others in the Calophyllum Province. The distribution and relative abundance of solitary species in Svalbard, East Greenland and the Sverdrup Basin confirms the geographic proximity of those areas and open marine communication between them during Guadalupian time. Contrasting, lov diversity in the Central European Basin and the Eastern European Platform indicates scarcity of favourable marine habitats and low level of faunal exchange with the remainder of the Calophyllum Province.
15
Content available remote Permian corals of the Cordilleran-Arctic-Uralian Realm
EN
Permian rugose corals of the Cordilleran-Arctic-Uralian Realm are abundant in shallow-water carbonates along the northwestern and western margin of Pangaea, from the Ural Mountains, area in Russia, through the Svalbard Archipelago and arctic and western North America, to Bolivia and Peru. The colonial forms are of particular interest for the biostratigraphy and reconstruction of the paleogeography of this extensive region. A revision of the systematics of these corals has shown that, although important differences exist between the assemblages in the areas listed, the faunas are recognizable throughout the entire realm. Almost all of the faunas in the realm, on cratonal Pangaea, are Cisuralian (Asselian to Artinskian) in age although younger faunas occur in rocks of terranes subsequently accreted to North America. The cratonal faunas show a general trend from a predominance of relatively simple, fasciculate species with open axial areas or weakly developed axial structures in the lowest Permian, to younger, more complex fasciculate and massive species with a variety of morphological elements in their axial structures and dissepimentaria. Suppression of the walls occurs commonly in the youngest faunas. As a result of the northward movement of Pangaea into cooler waters, colonial rugose corals were exterminated from the more northerly areas by early to mid-Artinskian time, but persisted throughout the Artinskian and possibly into the Kungurian and early Guagalupian in the cratonic successions of the western U.S.A. Similarities between the coral faunas of cratonal North America and the western allochthonous terranes indicate that faunal interchange occurred between these various coral faunas during the Cisuralian. The only colonial corals recovered from Wordian to Lopingian rocks in this region are waagenophyllid corals of tethyan affinity from the Cache Creek and Quesnellia terranes of British Columbia and the Hayfork and Eastern Klamath terranes of California.
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