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1.
《International Geology Review》2012,54(4):577-583
Six new species of the genus Bythocytheremorpha, including B. centroscrobiculata, B. aksuensis, B. bicornis, B. (?) abnormis, B. torulosa, and B. ilyini, are reported and described from beds of Upper Cretaceous age (Cenomanian through Santonian) of the southwestern part of the Gissar Range, located in the southeast of Soviet Central Asia. These relatively primitive Cretaceous ostracods, which possess an intricately sculptured carapace, seem to have lived in a shallow, warm, marine environment. — R. H. Benson. 相似文献
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《International Geology Review》2012,54(9):1534-1542
This short section of Skarlato's monograph, Bivalve Mollusks of the Far Eastern Seas of the U. S. S. R. (Order Dysodonta), discusses the genus Arvella Bartsch, 1940 ms. The genus includes the species formerly assigned to Crenella. Diagnostic features of the species included in genus Arvella Bartsch are given. Vilasina Bartsch, 1940 ms is discussed, also The author states that the hinges of Vilasina clearly assign the species to the genus Crenella. The form and position of the umbo relate the species closely to the genus Arvella, though. The almost entirely smooth laminated surface distinguishes Vilasina from both genera, as does the finely serrated ventral edge of the shell. The last section discusses the genus Modiolus Lamarck, 1799. — A. W. Bellais. 相似文献
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《International Geology Review》2012,54(8):1416-1421
Three new species and two new genera of scleractinian corals are described from the upper Oxfordian (Jurassic) limestones of Azerbaijan. Cyathopora parva, Thecosmilia vurguni, and Thecosmilia zagaliensis are described as new. The genus Brevimaeandra (Type species: B. alizadei nov. sp.) is compared with Mycetophyllopsis and Maeandrastraea, and is placed in the Family Montlivaltiidae. Grandifavia (Type species: G. bendukidzeae, nov. sp.) is placed in the Family Faviidae and is compared with Favia and Nefocoenia. No other constituents of the fauna are listed nor are references to such lists given. A brief introduction states that the limestones of middle Oxfordian age are probably reworked reef deposits, and that the coral and sponge reefs were deposited in waters probably not over 90 m deep. No stratigraphic sections are given. — D. F. Squires. 相似文献
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《International Geology Review》2012,54(10):1844-1846
Kurgalimova discusses the displacement of the aperture and the modification of its shape in the genera Gaudryina, Belorussiella, and Paragaudryina. The species G. navarroana Cushman, B. intermedia sp. nov., and P. pseudonavarroana (Balakh.) occur in fairly distinct stratigraphic position in lower to middle Eocene deposits of the southeastern part of the Turgay depression, South Emba and Bukhara Province.—M.A. Buzas 相似文献
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《International Geology Review》2012,54(8):1469-1473
A new species of Caytonia, C. orientale, and a new genus and species Chankanella vachrameevi are described from Neocomian-Aptian coal bearing strata in the Primor'ye Territory, Suifun basin. The new species of Caytonia is differentiated from C. sewardii Thomas and C. canadensis (Berry) Bell on the basis of size and slight morphological variances. Only one specimen of a megasporophyll was available for study. Leaves found in the same stratum and attributed to the new species differ from other species of Sagenopteris chiefly in the greater length of the petioles of the leaflets. Chankanella vachrameevi is described as a Sagenopteris-like leaf. It differs from Sagenopteris in having a larger number of leaflets and in lacking anastomoses of veins in the leaflets. It is compared with Lesleva Lesquereux. Its leaflets are compared with Thinnfeldia pinnae, and the leaves of Tersiella Radczenko, Linquifolium and Protophyllocladus. — F. M. Hueber. 相似文献
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《International Geology Review》2012,54(12):2102-2104
Rozman, describing in 1960 the Famennian deposits of Mugodzhar, mentioned a new genus Pseudonudirostra to which were assigned Pseudonudirostra uralica (Nalivkin, 1947), P. posturalica sp. nov. and P. planoovalis (Nalivkin, 1937). Sartenaer in 1961 distinguished the genus Trifidorostellum with the type species Leiorhynchus dunbarense Haynes, 1916. A year later Rozman (1962) described the new genus Pseudoleiorhynchus (= Pseudonudirostra), with the type species Leiorhynchus uralicus Nalivkin. Sartenaer in 1963 visited Russia and both authors concluded that Pseudoleiorhynchus was a junior synonum of Trifidorostellum. The early Famennian T. dunbarense of America and the late Famennian T. uralicum of Russia form a single group of species of stratigraphic value for intercontinental correlation of Famennian deposits.--A.W. Norris. 相似文献
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《International Geology Review》2012,54(6):1075-1083
Four arctic species of Liostrea related to the European L. delta (Smith) form a distinct evolving lineage in the Anabar-Khatanga basin during Late Jurassic Early Cretaceous time These are, in ascending order: Liostrea ex. gr. delta (Early Kimmeridgian), L. plastics (Trautschold) (Kimmeridgian), L. praeanabarensis n. sp. (described) (Volgian), and L. anabarensis Bodyl. (Early Cretaceous). Their morphology is reviewed. The lineage is characterized by small, oval to falcate shells with strong posterior curvature, convex left valves, and flat to slightly concave right valves. Widely, subevenly spaced concentric lamellae cover the surface. Some species develop small dorsoposterior auricles. Population analysis of two species demonstrates considerable variability in valve outline and development of the attachment scar and auricle.. Chronologically successive species show up to 10 percent morphologic overlap, demonstrating their genetic relationship. Principal evolutionary trends in progressively Younger species are 1) reduction of attachment scar size, and presumably of duration of attachment during ornogeny; 2) elongation and upward curving of the posterior shell margin — change from oval to falcate outline; 3) development and subsequent loss of a dorsoposterior auricle. Elongation of the valve takes place only with reduction of attachment scar size in all species. These trends are adaptations to changing marine environments within the Anabar- Khatanga basin after its geographic and environmental restriction during the Late Jurassic. The lineage appears endemic to the basin. The adaptive value of many morphologic features is discussed at length.—E. J. Kauffman. 相似文献
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《International Geology Review》2012,54(9):1676-1681
The newly recognized extant Asian conifer genus Cathaya is represented by fossil material in Europe. Female cones from the Oligocene of Saxony are assigned to C. europaea n. sp. ; these are distinguishable from the cones of the extant species of Cathaya. Cathaya abchasica n. sp. is based on foliar remains from the Pliocene of Abkhazia; the generic assignment is validated by comparison of the stomatal characteristics. The one previous fossil record of Cathaya in Europe is not considered valid. — J. A. Wolfe 相似文献
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《International Geology Review》2012,54(9):1670-1675
Nathorstia is a genus of Cretaceouslern with a broad distribution in the Northern Hemisphere. Previous authors have disagreed on the systematic position of Nathorstia, but investigation of the epidermis and sori of material from the lower Cretaceous of Primor'ye, Suyfun basin, has helped to clarify the problem. The genus was originally described by Heer, who assigned it to the family Marattiaceae, because of erroneous interpretation of the son. However, the true affinity is apparently with the Matoniaceae, particularly with the genus Phlebopteris Brongniart. A diagnosis of Nathorstia is presented, and N. pectinata (Goeppert) Krasilov, n. comb. (formerly Reussia pectinata Goeppert) is designated the type species. — S. H. Mamay. 相似文献
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《International Geology Review》2012,54(10):1860-1863
Putrya describes the new species Streblus galicianus, S. mjatliukae, S. pseudobeccarii, and S. granulosus from upper Tortonian (Miocene) deposits in Ciscarpathia.—M. A. Buzas 相似文献
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《International Geology Review》2012,54(8):1435-1443
The author discusses the conceptual bases of the pelecypod family Allorismidae and of the Carboniferous genera Allorisma, Allorismiella, Edmondia, Edmondiella, and Pseudedmondia. There is an extensive discussion of the hinge line structures of Allorisma based on Russian specimens, and four species of the genus from the Carboniferous of the Moscow area are described. Astaf'yeva-Urbaitis overlooked Wilson's 1959 paper in which Allorisma was shown to be a junior synonym of Edmondia; as a result Astaf'yeva-Urbaitis' nomenclature is faulty. Wilson replaced Allorisma with the new generic name Wilkingia. — J. Pojeta, Jr. 相似文献
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《International Geology Review》2012,54(12):2246-2248
The new genus Daubichites (Paragastrioceratidae) includes involute, broadly discoidal shells with fine reticulate surface ornamentation, plicate or tuberculate umbilical shoulders on the early volutions, a suture line with 8 lobes, and a ventral sinus reflected in the growth line and septal necks. Two species are presently included in the genus, Daubichites goochi (Teichert) from the Upper Permian of Western Australia, and D. orientalis Popovsp. nov. (the type species here described) from the Upper Permian of the Sikhote-Alin' Range, Maritime Coast region (Primor'ye). In addition, certain pseudogastrioceratid species from the Phosphoria and Kaibab Formations of North America may belong to this genus. Daubichites is important to the phylogenetic study of the Paragastrioceratidae because it is transitional between Early Permian forms which possess a ventral projection and Late Permian forms with a ventral sinus. Daubichites is possibly descended from Tumaroceras. — Erle Kauffman. 相似文献
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《International Geology Review》2012,54(9):1655-1658
Two species of subtriangular, trilete spores assigned to a new form genus, Acritosporites, occur in Cenomanian and Turonian sandstones and silty clays of central U. S. S. R. Three proximal, interradial, oval "lacunae" and one distal, circular "lacuna" characterize the genus. The author, in disagreement with Bolkhovitina, prefers not to ally A. sibiricus (Bolkh.) comb. nov. with Lygodium. — D. C. McGregor. 相似文献
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《International Geology Review》2012,54(8):1444-1449
The latest Cambrian deposits of the Malyy Karatau in Kazakhstan contain nautiloid cephalopods associated with trilobites. Four new species of nautiloids are described and assigned as follows: Ellesmeroceratidae — Tamdoceras n. gen; T. lisogorae n. sp.; T. logicameratum n. sp.; Protocycloceratidae — Chabactoceras n. gen.; C. balashovi n. sp. — C. R. Palmer. 相似文献
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《International Geology Review》2012,54(12):2115-2120
Two new species of Early Carboniferous colonial Rugosa discovered in collections from the western slopes of the Central Urals provide additional data on geographic ranges of Aulina and Paralithostrotion. Aulina kosvensis is the first fasciculate species of the genus to be described from the U. S. S. R. It was found in the Upper Viséan Ladeininskii horizon. Paralithostrotion talkaense is described on material from the Ladeininskii and Ust'sarbaiskii horizons and considered to be of upper Viséan(?) and Namurian age. In connection with this investigation, the type material of Paralithostrotion jermolaevi Gorskiy and Tschernowiphyllum podboriense Dobrolyubova, which are the type species of the two genera, was restudied and found to be congeneric. Tschernowiphyllum Dobrolyubova, 1958, is therefore a junior synonym of Paralithostrotion Gorskiy, 1938. As revised, Paralithostrotion is considered to be a doubtful lithostrotionid lacking a genuine columella and having tabulae that are concave to horizontal. The corallum is fasciculate with connecting processes, which open into a corallite at one end but at the other terminate blindly against a neighboring corallite. Two opposing septa are longer than the other majors and generally overlap in the axial region. The dissepimentarium is narrow and may not be developed. - H. Duncan. 相似文献
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《International Geology Review》2012,54(8):1474-1479
A new plant species, Cooksonia crassiparietilis, is described from the Lower Devonian of central Kazakhstan. It is found associated with Psilophyton princeps Dawson and Zosterophyllum australianum Cookson and Lang. The species is differentiated from other species of Cooksonia on the basis of sporangium size and wall structure. Forked sporangia are reported. Dehiscence of the sporangia is described as apical and lateral. This report extends the geographic range of the genus. — F. M. Hueber. 相似文献
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《International Geology Review》2012,54(8):1450-1455
The brachiopod genus Aulacothyris Douvillé of late Jurassic age was shown to possess a brachidial loop joined to the dorsal septum during early stages of growth. This genus therefore was excluded from the family Zeilleridae and assigned to the family Dallinidae of the superfamily Terebratelloidea. On the basis of similar external and internal characters, particularly loop development, Babanova suggested that the following brachiopod genera should be combined into a tribe, Aulacothyrini trib. nov.: Aulacothyropsis, Aulacothyris, Terebrataliopsis and Kafirnigania. Babanova also described a new rhynchonellid genus which he named Bilanainella, collected from beds of Callovian age outcropping in the eastern Crimean Mountains. — A. W. Norris. 相似文献