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1.
《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   

2.
《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   

3.
The late Paleozoic genus Praehorridonia and its type species is described, differing from Horridonia by presence of radial and concentric sculpture and by absence of spines on the brachial valve. The author believes the large Praehorridonia possessing traces of semireticulate structure, descended from the strongly semireticulate Antiquatonia in Middle Carboniferous and evolved into Horridonia, thus representing an intermediate stage between Antiquatonia and Horridonia. The family was confined to the Arctic throughout its history and became extinct in the middle of the Upper Permian. -- G. A. Cooper.  相似文献   

4.
《International Geology Review》2012,54(12):2105-2114
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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.
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   

7.
《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   

8.
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   

9.
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   

10.
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   

11.
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   

12.
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13.
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   

14.
《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   

15.
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   

16.
A new graptolite genus is described from lower Wenlockian rocks on the Molyud-Vozh river in the northwest Urals. Uralograptus closely resembles Cyrtograptus but lacks the spiral coiling of the main part of the rhabdosome. U. insuetus, the type species, was collected from the zone of Oktavites spiralis (Geinitz). --B.S. Norford.  相似文献   

17.
《International Geology Review》2012,54(12):2224-2228
The Septal structure of Palaeofavosites Twenhofel consists of vertical rows of spines; that of Agetolites Sokolov, of solid or spinous septal lamellae. A new genus Hemiagetolites i is characterized by large septal spines which fuse at their base to form septal lamellae. Hemiagetolites is considered to be phylogenetically intermediate between Palaeofavosites and Agetolites and all three genera are assigned to the Favositidae. — W.A. Oliver, Jr.  相似文献   

18.
A collection of Pseudovermiporella Elliott, from the Upper Permian of Transcaucasia, was studied. History of previous studies of the genus is given, pointing out the variable systematic interpretations. In the present investigation, fertile structures are described and presented as evidence of algal affinity. Pseudovermiporella is tentatively assigned to Rhodophyta. -- S. H. Mamay.  相似文献   

19.
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   

20.
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   

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