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Wyszukujesz frazę "Danilov, I G" wg kryterium: Autor

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    Wyświetlanie 1-4 z 4
    Tytuł:
    New data on lindholmemydid turtle Lintholmemys from the Late Cretaceous of Mongolia
    Autorzy:
    Danilov, I G
    Sukhanov, V.B.
    Powiązania:
    https://bibliotekanauki.pl/articles/22651.pdf
    Data publikacji:
    2001
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    locality
    Late Cretaceous
    Cretaceous
    turtle
    Lindholmemys
    Mongolia
    Asia
    Lindholmemys martinsoni
    Lindholmemydidae
    shell fragment
    Sheeregeen Gashoon
    Bayn Shire Formation
    lindholmemydid turtle
    shell morphology
    paleontology
    Opis:
    Reinvestigation of a fragmentary lindholmemydid turtle from a Mongolian locality Sheeregeen Gashoon (late Turonian-Santonian) suggested reassignment to Lindholmemys martinsoni Ckhikvadze, 1975. This restricts the stratigraphic range of the genus Mongolemys, to which the specimen was originally assigned. Additionally, new morphologica1 data on L. martinsoni have been gathered and are presented in this paper. The Lindholmemydidae are considered here as a paraphyletic group uniting primitive testudinoids (all of which are known from Cretaceous to Paleocene of Asia). Their shell morphology is characterized by well developed plastral buttresses, which contact costal bones (synapomorphy of testudinoids, see Gaffney & Meylan 1988) and by complete (uninterrupted) row of inframarginal scutes (primitive character).
    Źródło:
    Acta Palaeontologica Polonica; 2001, 46, 1
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A basal eucryptodiran turtle 'Sinemys' efremovi [-Waguia efremovi] from the Early Cretaceous of China
    Autorzy:
    Danilov, I G
    Sukhanov, V.B.
    Powiązania:
    https://bibliotekanauki.pl/articles/21804.pdf
    Data publikacji:
    2006
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    Early Cretaceous
    Cretaceous
    Testudines
    turtle
    China
    eucryptodiran turtle
    Junggar Basin
    Macrobaenidae
    Eucryptodira
    Wuguia efremovi
    Sinemys efremovi
    paleontology
    Opis:
    A reexamination of the type material (two specimens considered for a long time lost) of the poorly known turtle “Sinemys” efremovi Khosatzky, 1996 from the Early Cretaceous Tugulu Group of northwest China, allows us to present new observations, images, and taxonomic conclusions about these important specimens. We conclude that: (1) “S.” efremovi is referrable to the basal eucryptodire genus Wuguia Matzke, Maisch, Pfretzschner, Sun, and Stöhr, 2004 based on a small size (up to 150 mm in shell length), absence of the nuchal emargination, presence of additional ossifications in the suprapygal region of the carapace and similar plastral proportions with relatively long bridges (35−45% of the plastron width), and a narrow and elongated posterior lobe; (2) “S.” efremovi is a senior subjective synonym of Dracochelys wimani Maisch, Matzke, and Sun, 2003, another species recently described from the Tugulu Group. As construed here, Wuguia includes two species: W. efremovi (Khosatzky, 1996) and W. hutubeiensis Matzke, Maisch, Pfretzschner, Sun, and Stöhr, 2004. New diagnoses for these taxa are given.
    Źródło:
    Acta Palaeontologica Polonica; 2006, 51, 1
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The description and phylogenetic position of a new nanhsiungchelyid turtle from the Late Cretaceous of Mongolia
    Autorzy:
    Sukhanov, V.B.
    Danilov, I.G.
    Syromyatnikova, E.V.
    Powiązania:
    https://bibliotekanauki.pl/articles/21943.pdf
    Data publikacji:
    2008
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    description
    phylogenetic position
    new species
    nanhsiungchelyid turtle
    Kharakhutulia kalandadzei
    turtle
    Late Cretaceous
    Mongolia
    Kharakhutulia
    paleontology
    Nanhsiungchelyidae
    Cryptodira
    Testudines
    Upper Cretaceous
    Opis:
    This paper describes a new nanhsiungchelyid turtle, Kharakhutulia kalandadzei gen. et sp. nov., based on two partial shells and additional shell fragments from the lower part of the Bainshire Formation (Upper Cretaceous, Cenomanian–lower Turonian) of the Khara Khutul locality of Eastern Mongolia. Our phylogenetic analysis places Kharakhutulia kalandadzei as the most basal member of the Nanhsiungchelyidae and suggests new relationships within this group. Previously reported nanhsiungchelyid specimens from the Khara Khutul are reassigned to Nanhsiungchelyidae indet. and Hanbogdemyssp. indet. Thus the Khara Khutul includes at least two valid taxa of nanhsiungchelyids. Our analysis of the nanhsiungchelyid record in Asia shows that other localities have only a single representative of this clade, making Khara Khutul a unique site. The basal phylogenetic position of Kharakhutulia kalandadzei emphasizes the importance of the study of this and other Cenomanian–Turonian localities of Asia to better understand the basal diversification of the Nanhsiungchelyidae.
    Źródło:
    Acta Palaeontologica Polonica; 2008, 53, 4
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A new soft-shelled trionychid turtle of the genus Khunnuchelys from the Upper Cretaceous Bostobe Formation of Kazakhstan
    Autorzy:
    Danilov, I.G.
    Vitek, N.S.
    Averianov, A.O.
    Glinskiy, V.N.
    Powiązania:
    https://bibliotekanauki.pl/articles/945569.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    paleontology
    new species
    soft-shelled turtle
    Testudines
    Trionychidae
    Trionychia
    Khunnuchelys lophorhothon
    Upper Cretaceous
    Cretaceous
    Bostobe Formation
    Kazakhstan
    Opis:
    Previously unpublished trionychid turtle material from the Upper Cretaceous (Santonian–lower Campanian) Bostobe Formation from the Baybishe and Baykhozha localities in Kazakhstan is described. The material represents a new species of Khunnuchelys, a large, skull-based clade of Cretaceous Asian trionychids. Concordant with other partial skulls and fragmentary specimens described previously, Khunnuchelys lophorhothon sp. nov. has the unusual features of a beaklike maxilla and a vaulted, expanded triturating surface. In addition, the specimens reveal novel features including a constricted skull roof. Although estimates of the length of the carapace differ depending on estimation method, the skull belonged to a turtle of comparable size to the shell-based species “Trionyx” kansaiensis from the same formation. It is likely that K. lophorhothon and “T.” kansaiensis are synonymous, but this can be proved only by a find of associated skull and shell material.
    Źródło:
    Acta Palaeontologica Polonica; 2015, 60, 1; 155-161
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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