New genus of Cyclida (Crustacea) from Lower Carboniferous (Mississippian, Viséan) of Russia and England and new species from Viséan of Russia

2019 ◽  
Vol 294 (1) ◽  
pp. 81-90 ◽  
Author(s):  
Eduard V. Mychko ◽  
Rodney M. Feldmann ◽  
Carrie E. Schweitzer ◽  
Alexander S. Alekseev
Keyword(s):  
New Species ◽  
New Genus ◽  
Unique Feature ◽  
Southern Urals ◽  
The Southern Urals ◽  
Lower Carboniferous ◽  
Reef Environments

Within the crustacean group Cyclida, Prolatcyclus gen. nov. includes two species, Prolatcyclus martinensis (Goldring, 1967) and P. kindzadza sp. nov., described from the Lower Carboniferous (Mississippian, upper Viséan) of England and the Southern Urals of Russia, respectively. Members of the genus have a unique feature for cyclids – large hypertrophied second axial lobes. The species P. kindzadza is 2.5 times larger than P. martinensis. Both species are exclusively inhabitants of reef environments.

scholarly journals New representatives of the species Kerpia samarica from the location Novyi Kuvak (kazanian stage, Samara Region)

2016 ◽  
Vol 5 (2) ◽  
pp. 11-15
Author(s):  
Liubov Mikhailovna Bukhman ◽  
Nikolay Sergeevich Bukhman
Keyword(s):  
New Species ◽  
Southern Urals ◽  
Species Level ◽  
Middle Urals ◽  
The Southern Urals ◽  
Kazanian Stage ◽  
New Findings ◽  
The One ◽  
Kungurian Stage ◽  
A New Species

The article is devoted to the study of new representatives of the genus Kerpia Naugolnykh from Novyi Kuvak located in Shentalinsky district (northeast of Samara region). The genus Kerpia for ginkgo similar leaves was set by S.V. Naugolnykh in 1995 on the material from the Kungurian stage of the Middle Urals. Typical species of this genus is Kerpia macroloba Naugolnykh. In the diagnosis of the genus S.V. Naugolnykh showed the most important signs of this genus: presence of lobes and sinuses of the 1st and 2nd order, distinct petiole and two veins included in lamina from the petiole. Later, in 2001, from the sediments of Kazanian stage of the Southern Urals S.V. Naugolnykh described a new species Kerpia belebeica Naugolnykh. In 2013 in Novyi Kuvak location we found impressions of ginkgo similar leaves with on the one hand a great similarity with the known members of the genus Kerpia ( Kerpia macroloba and Kerpia belebeica ), but on the other hand they are clearly not identical to this representative at the species level. According to the results of the study of these impressoins in 2014 we described a new species of the genus Kerpia - Kerpia samarica N.S. Bukhman et L.M. Bukhman, 2014. In this paper we give description of both known and new findings of species Kerpia samarica and a comparison of this species with other species of the genus Kerpia .

Russian Devonian brachiopod genera Cyrtinoides and Komiella in North America

1993 ◽  
Vol 67 (6) ◽  
pp. 952-958 ◽  
Author(s):  
J. G. Johnson ◽  
R. B. Blodgett
Keyword(s):  
New Species ◽  
North America ◽  
Carbonate Platform ◽  
Southern Urals ◽  
Late Devonian ◽  
Western North America ◽  
The Southern Urals ◽  
New Family ◽  
Marine Migration ◽  
Subjective Synonym

The Middle Devonian brachiopod genus Cyrtinoides, described from the southern Urals, is a senior subjective synonym of Mucroclipeus, previously known only from eastern and western North America. The Middle and Late Devonian cyrtinid brachiopod genus Komiella, previously known only from the Timan Range of eastern Europe, is identified from west-central Alaska and Nevada. A new family Komiellidae is proposed. New species are Komiella gilberti, K. magnasulca, and K. stenoparva. Known species of both genera occupy carbonate platform foreslope facies or shelf basins, allowing open marine migration via peripheral biofacies.

scholarly journals Geology, physical-chemical and geodynamic conditions for the formation of Sokolovsk and Krasnokamensk granitoid massifs (South Ural)

Georesursy ◽  
2021 ◽  
Vol 23 (1) ◽  
pp. 85-93
Author(s):  
Vladimir I. Snachev ◽  
Aleksandr V. Snachev ◽  
Boris A. Puzhakov
Keyword(s):  
Early Carboniferous ◽  
Southern Urals ◽  
Geological Structure ◽  
Rift System ◽  
Second Phase ◽  
The Southern Urals ◽  
Lower Carboniferous ◽  
Sedimentary Deposits ◽  
Granite Formation ◽  
Physical Chemical

The article describes the geological structure of the Sokolovsk and Krasnokamensk massifs located in the central part of the Western subzone of the Chelyabinsk-Adamovka zone of the Southern Urals. They are of Lower Carboniferous age and break through the volcanogenic-sedimentary deposits of the Krasnokamensk (D3kr) and Bulatovo (S1-D1bl) strata. It was found that these intrusions belong to the gabbro-syenite complex and are composed of gabbroids (phase I) and syenites, quartz monzonites, less often monzodiorites (phase II). The rocks of the second phase predominate (90–95%). Gabbros belong to the normal alkaline series of the sodium series and are close to tholeiitic mafic rocks, the formation of which is associated with riftogenic structures; syenites correspond to moderately alkaline series with K-Na type of alkalinity. It has been proved that in terms of their petrographic, petrochemical, geochemical, and metallogenic features (content of TiO2, K2O, Na2O, Rb, Sr, distribution of REE, the presence of skarn-magnetic mineralization), the rocks of the massifs under consideration undoubtedly belong to the gabbro-granite formation. Crystallization of the Sokolovsk and Krasnokamensk intrusions occurred at a temperature of 880–930 °С in the mesoabyssal zone at a depth of about 7–8 km (P = 2.2–2.4 kbar). At the postmagmatic stage, the transformation parameters of the initially igneous rocks were, respectively, T = 730–770 °C, P = 4.0–4.2 kbar. The fact that these massifs belong to the gabbro-granite formation makes it possible to include them, together with Bolshakovsk, Klyuchevsky, Kurtmaksky and Kambulatovo, into the Chelyabinsk-Adamovka segment of the South Ural Early Carboniferous rift system.

scholarly journals GOLD-JASPEROID MINERALIZATION IN ZONE OF THE SHARTYMSKIY FAULT (SOUTH URALS)

2020 ◽  
Vol 19 (3) ◽  
pp. 275-281
Author(s):  
P. V. Kazakov ◽  
Keyword(s):  
Southern Urals ◽  
South Urals ◽  
Weathering Crust ◽  
The Southern Urals ◽  
Lower Carboniferous ◽  
Stage Of Development ◽  
Deposit Type ◽  
Economic Concentration ◽  
Carboniferous Limestone ◽  
Gold Bearing

The Shartymskiy Graben was formed at zone of the Shartymskiy Fault in the late collision stage of development of the Southern Urals on the joint of the Western and Eastern Magnitogorsk sub-zone in conditions of variable compression and stretching, and was made with the Lower Carboniferous limestone. Occurrences of gold-bearing metasomatites (jasperoids, sericite-chlorite-carbonate-quartz, sericite-quartz) have been established in the precontact zones of carbonates, gabbro-dolerites, diorites dykes, and small intrusions of sub-alkaline leuсograniteporphirs of the Shartymskiy massif. Mediated connection with them of gold sprouts is established. The gold economic concentration of the Vorontsovskiy deposit type is expected on the certain sections of metasomatites of jasperoid association and their weathering crust.

A new cyclocystoid (Echinodermata) from the Late Ordovician of Kentucky, U.S.A.

1995 ◽  
Vol 69 (6) ◽  
pp. 1186-1187 ◽  
Author(s):  
Andrew B. Smith ◽  
Mark A. Wilson
Keyword(s):  
New Species ◽  
Functional Morphology ◽  
New Genus ◽  
Personal Communication ◽  
Late Ordovician ◽  
Late Devonian ◽  
New Genus And Species ◽  
Systematic Revision ◽  
Lower Carboniferous ◽  
Lower Ordovician

Cyclocystoids are one of the rarest and most enigmatic of the extinct echinoderm groups. Despite recent systematic revision (Smith and Paul, 1982), their basic anatomy and functional morphology remain poorly understood. Smith and Paul (1982) recognized eight genera and 39 species ranging in age from Lower Ordovician to Late Devonian. Since then, one new genus and species,Monocycloides oelandicus, has been established by Berg-Madsen (1987), and the range of the genusSievertsiahas been extended to the Middle Devonian of the U.S.A (Fluegeman and Orr, 1990). In addition, undescribed cyclocystoid marginal ossicles have been found in the Lower Carboniferous of Ireland (G. D. Sevastopulo, personal communication). Here we record an additional new species from the Late Ordovician of Kentucky.

scholarly journals Svenzea, a new genus of Dictyonellidae (Porifera: Demospongiae) from tropical reef environments, with description of two new species

2002 ◽  
Vol 71 (4) ◽  
pp. 171-176 ◽  
Author(s):  
Belinda Alvarez ◽  
Rob W.M. van Soest ◽  
Klaus Rützler
Keyword(s):  
New Species ◽  
New Genus ◽  
Caribbean Sea ◽  
Taxonomic Position ◽  
The Family ◽  
Two New Species ◽  
Reef Environments ◽  
Tropical Reef ◽  
The Caribbean ◽  
Developmental Features

The new genus Svenzea is created to group three sponge species from tropical reef environments of the Caribbean Sea and Indonesia: Pseudaxinella (?) zeai Alvarez, Van Soest & Rützler, Svenzea cristinae n. sp. and S. devoogdae n. sp. The genus shows affinities with members of both Halichondrida and Haplosclerida but it is assigned to the family Dictyonellidae based on shared microanatomical and developmental features. The higher taxonomic position of Svenzea is a subject for future investigations.

Biostratigraphic implications of the first North American occurrence of the Upper Mississippian ammonoid Platygoniatites

1993 ◽  
Vol 67 (2) ◽  
pp. 310-313
Author(s):  
Alan L. Titus
Keyword(s):  
New Species ◽  
North America ◽  
North Africa ◽  
Southern Urals ◽  
Wide Distribution ◽  
Southern Europe ◽  
Ural Mountains ◽  
The Southern Urals ◽  
East Central ◽  
A New Species

The late Mississippian ammonoid family Delepinoceratidae is comprised of the genera Platygoniatites and Delepinoceras, and is considered one of the more biostratigraphically significant families for lower Namurian correlation (Manger et al., 1985). Platygoniatites, the earliest member, is known from eastern and southern Europe (Ruzhencev and Bogoslovskaya, 1971; Wagner-Gentis, 1963, 1980) and North Africa (Lemosquet et al., 1985). Despite its wide distribution, Platygoniatites is generally a rare member (with the exception of the southern Ural Mountains) of latest Visean and earliest Namurian faunas. It has never been reported previously from North America, though thousands of ammonoids have been collected here from age equivalent beds. The discovery of a new species of the genus in the late Mississippian faunas of east-central Nevada provides new data for precise correlation of the ammonoid zonations of Gordon (1970) to the type Namurian and indicates a need for revision of the current correlations between the southern Urals and northwestern Europe.

Vojnovskytesidae – a new family of Mississippian Rugosa (Anthozoa)

2013 ◽  
Vol 63 (4) ◽  
pp. 657-679 ◽  
Author(s):  
Jerzy Fedorowski ◽  
Jürgen Kullmann
Keyword(s):  
New Species ◽  
Type Species ◽  
New Genus ◽  
Southern Urals ◽  
Northern Spain ◽  
New Family ◽  
Two New Species

ABSTRACT Fedorowski, J. and Kullmann, J. 2013. Vojnovskytesidae - a new family of Mississippian Rugosa (Anthozoa). Acta Geologica Polonica, 63(4), 657-679. Warszawa. 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 Visean strata of southern Urals, also is discussed and illustrated. Characters displayed by the taxa mentioned permit introduction of a new family Vojnovskytesidae.

Sign in / Sign up

Export Citation Format

Share Document