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1.
《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   

2.
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   

3.
The classification of the tribe Bereselleae of the family Dasycladaceae is discussed in some detail. The genera Beresella, Samarella and Dvinella are placed in the tribe with Trinodella, being treated as a subgenus of Dvinella. A number of new species are described: four in Beresella, six in Dvinella subgenus Dvinella and two in Dvinella subgenus Trinodella. The stratigraphic occurrence of the tribe in the Carboniferous at a number of localities on the Russian Platform is represented and a strong generic-facies association is pointed out. A pattern of variation in morphological form with sediment type is also discussed. — W. Adey.  相似文献   

4.
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   

5.
《International Geology Review》2012,54(10):1814-1821
Representatives of the bryozoan family Rhabdomesidae (the family name and derivatives, misspelled throughout the original version, are corrected in this translation), found in the Lower Kazanian deposits of the Russian Platform and the Upper Permian of the Little Caucasus and of Transcaucasia are described as new species of Rhabdomeson, Rhombopora, and Neorhombopora, n. gen. Rhombopora crassa Ulrich, 1884, from the Upper Carboniferous (Upper Pennsylvanian) of North America, is designated the type species of Neorhombopora, which is characterized by spiral budding in ihe axial zone and by the absence of megacanthopores. Although only three genera and four species of rhabdomesids are recognized in the Upper Permian of the Soviet Union, specimens are comparatively abundant, and the species seem to be good index fossils. Rhabdomeson noinskyi was identified from various localities in the Lower Kazanian of the Vyatka and Nemda river basins; Rhabdomeson floriforum occurs in the Upper Permian Gnishik suite at several localities in Transcaucasia; Rhornbopora ornata is known from the Lower Kazanian of Kirov and Arkhangel'sk Provinces, Komi ASSR; and Neorhombopora polita was found at one locality in the Lower Kazanian of Kirov Province.—H. Duncan  相似文献   

6.
《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   

7.
Tabulate corals, including new species of Cyrtophyllum (C. elegantum, C. altaicum, C. vulgaris), Propora (P. proheliolitoides), and Plasmoporella (P. altaica) aid in defining Upper Ordovician strata of Gornyy Altay region; in addition, new species of Heliolites (H. pachycanaliculoides), Favosites (F. karagemensis), Pachyfavosites (P. bazhenovae), Squameofavosites (S. karagemensis, S. altaicum), and Hexismia (H. asiatica) form part of a rich Late Silurian fauna within the same region.—T. E. Bolton  相似文献   

8.
9.
Ammonoids of early Upper Scythian age are described from three localities in the Northern Caucasus. No data on relative stratigraphic position is given, but some forms are common to the different exposures and the author concludes that all the ammonoids are Upper Scythian (Olenekian). Affinites with Pacific faunas are stressed and the faunules are correlated with the Owenites zone of North America. Two new genera (Parinyoites and Subowenites) and three new species (Dieneroceras caucasicum, Parinyoites ,mastykensis, Subovvenites slavini)are proposed. Flemingites pulcher Waagen, Wyomingites aplanatus (White), Parussuria compressa (Hyatt and Smith), and Owenites koeneni (Hyatt and Smith) are described and figured. Parinyoites differs from Metinyoites in having rounded saddles and it lacks the keel and costation of Inyoites. Subowenites has reticulate ornamentation, unlike Owenites, Parowenites, and Pseudowenites; it also lacks the adventive notches in the median saddle of Pseudowenites. --E. T. Tozer.  相似文献   

10.
《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   

11.
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   

12.
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   

13.
The new fenestellid bryozoan family Fenestraliidae is proposed to include Fenestralia Prout and two new genera, Parafenestralia and Triznella, from the Upper Permian of the Russian platform. The new family is compared with the Polyporidae and the Fenestellidae and is thought to be more closely allied to the latter. Parafenestralia arborescens (Netschajew), Triznella permiana (Nikiforova), T. viatkensis (Nikiforova), and the new species T. formosa are described and illustrated.—J. Utgaard  相似文献   

14.
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   

15.
《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   

16.
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   

17.
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   

18.
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   

19.
A new species of the subgenus Solenopora (Neosolenopora) is described from upper Eocene, yellow-green, sandy-Micaceous clay filling, a pre-Paleogene excavation in a Precambrian surface at Ingulets, Dnepropetrovsk Province, 'USSR. The new species is Solenopora (Neosolenopora) multiformis. Excellent detail of the thalli is preserved and considerable anatomical and morphological detail is presented The discovery of this form constitutes the third report of Solenopora in the Cenozoic of Western Eurojie. The plants are associated with large nurnbetS of right valves from the pelecypod, Ostrea callifera Lam var. sokolovi Klushn. Other invertebrates associated with algal remains are Spondylus, Serpula and Nummulites. Paleoecological interpretation of the occurrence of the algal remains is given as a rocky shoal inhabited by a biocoenosis of sublittoral habit in depths of not more than 10–20 m. — F. M. Hueber.  相似文献   

20.
《International Geology Review》2012,54(10):1826-1839
The Oldhaminoidea are classified as a suborder of the Productida, on the basis of the new genus Spinolyttonia which has productid spines, and on other morphological considerations. The Transcaucasian oldhaminoids are described in support of this position, with detailed treatment of the genera Keyseriingina Tschernyschev, Leptodus Kayser, Oldhamina Waagen, Gubleria H. and G. Termier, Spinolyttonia Sarycheva (nov.), and Poikilosakos Watson. The Transcaucasian fauna is Upper Permian (Guadalupian and Dzhulfian).—R. E. Grant  相似文献   

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