Igor G. Danilov
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View article: A fossil leatherback sea turtle from the Bartonian of Kazakhstan
A fossil leatherback sea turtle from the Bartonian of Kazakhstan Open
The article describes fossil material of a leatherback sea turtle Dermochelyidae indet. from the Bayurbas and Sandy localities of the Shorym Formation (Bartonian, Middle Eocene) of the Mangyshlak Peninsula, Kazakhstan. The material is repr…
View article: Thecal and Epithecal Ossifications of the Turtle Shell: Ontogenetic And Phylogenetic Aspects
Thecal and Epithecal Ossifications of the Turtle Shell: Ontogenetic And Phylogenetic Aspects Open
The problem of the origin of the bony shell in turtles has a two‐century history and still has not lost its relevance. First, this concerns the issues of the homology, the sources of formation and the ratio of bones of different nature, th…
View article: A new Trachyaspis-like pan-cheloniid turtle from the Bartonian of Kazakhstan
A new Trachyaspis-like pan-cheloniid turtle from the Bartonian of Kazakhstan Open
The article describes a fossil pan-cheloniid Protrachyaspis shorymensis gen. et sp. nov. from the Karakeshi, Kert, Kuyulus, and Monata localities of the Shorym Formation (Bartonian, middle Eocene), as well as unknown localities of the Mang…
View article: Cranial morphology of <i>Heckerochelys romani</i> Sukhanov, 2006, a stem turtle from the Middle Jurassic of European Russia, with implications for the paleoecology of stem turtles
Cranial morphology of <i>Heckerochelys romani</i> Sukhanov, 2006, a stem turtle from the Middle Jurassic of European Russia, with implications for the paleoecology of stem turtles Open
The detailed morphological description of the skull of the stem turtle Heckerochelys romani from the Middle Jurassic (Bathonian) of the Peski locality, Moscow Region, Russia, is provided herein. All cranial structures of Heckerochelys roma…
View article: Anomalies of the vertebral and pleural scutes in the Middle Jurassiс turtle <em>Annemys variabilis</em> (Xinjiangchelyidae) from the Berezovsk coal mine (Krasnoyarsk Territory, Russia)
Anomalies of the vertebral and pleural scutes in the Middle Jurassiс turtle <em>Annemys variabilis</em> (Xinjiangchelyidae) from the Berezovsk coal mine (Krasnoyarsk Territory, Russia) Open
The anomalies of the vertebral and pleural scutes in the Middle Jurassiс turtle Annemys variabilis (Xinjiangchelyidae) from the Berezovsk coal mine (Krasnoyarsk Territory, Russia) have been studied based of more than 1000 isolated neural p…
View article: Paleogene turtles of Eastern Europe: new findings and a revision
Paleogene turtles of Eastern Europe: new findings and a revision Open
The article provides an overview of all known 39 localities of the Paleogene turtles of Eastern Europe. Numerous remains of turtles are described for the first time from 19 localities, of which six are new, and 13 are the localities from w…
View article: Peer Review #2 of "A new species of Nanhsiungchelys (Testudines: Cryptodira: Nanhsiungchelyidae) from the Upper Cretaceous of Nanxiong Basin, China (v0.1)"
Peer Review #2 of "A new species of Nanhsiungchelys (Testudines: Cryptodira: Nanhsiungchelyidae) from the Upper Cretaceous of Nanxiong Basin, China (v0.1)" Open
Nanhsiungchelyidae are a group of large turtles that lived in Asia and North America during the Cretaceous.Here we report a new species of nanhsiungchelyid, Nanhsiungchelys yangi sp.nov., from the Upper Cretaceous of Nanxiong Basin, China.…
View article: A Sea Turtle <i>Tasbacka aldabergeni</i> Nessov, 1987 from the Lower Paleogene Deposits of the Kudinovka Locality (Rostov Province, Russia)
A Sea Turtle <i>Tasbacka aldabergeni</i> Nessov, 1987 from the Lower Paleogene Deposits of the Kudinovka Locality (Rostov Province, Russia) Open
The article describes fossil remains of turtles from the Kudinovka locality (Paleogene, Paleocene or Ypresian; Millerovo District, Rostov Province, Russia). These remains, represented by 16 specimens, are referred to the sea turtle Tasback…
View article: The easternmost record of the largest anguine lizard that has ever lived – Pseudopus pannonicus (Squamata, Anguidae): new fossils from the late Neogene of Eastern Europe
The easternmost record of the largest anguine lizard that has ever lived – Pseudopus pannonicus (Squamata, Anguidae): new fossils from the late Neogene of Eastern Europe Open
We here report on new material of Pseudopus pannonicus , the iconic and largest-known representative of the lizard clade Anguinae, from several late Neogene localities across Moldova, Ukraine, and regions of the North Caucasus – the last r…
View article: A new hypercarnivorous hyaenodont from the Eocene of South China
A new hypercarnivorous hyaenodont from the Eocene of South China Open
A new hyaenodont Maocyon peregrinus , gen. et sp. nov., is described based on a partial skull and associated mandible from the upper Eocene Youganwo Formation at Maoming locality in Guangdong Province, China. It shows certain similarities …
View article: The easternmost record of the largest anguine lizard that has ever lived - Pseudopus pannonicus (Squamata, Anguidae): new fossils from the late Neogene of Eastern Europe
The easternmost record of the largest anguine lizard that has ever lived - Pseudopus pannonicus (Squamata, Anguidae): new fossils from the late Neogene of Eastern Europe Open
This dataset contains the digitized treatments in Plazi based on the original journal article Loreal, Erwan, Syromyatnikova, Elena V., Danilov, Igor G., Cernansky, Andrej (2023): The easternmost record of the largest anguine lizard that ha…
View article: First reliable records of the genus <i>Chersine</i> (Testudines: Testudinidae) from the Pliocene of Moldova
First reliable records of the genus <i>Chersine</i> (Testudines: Testudinidae) from the Pliocene of Moldova Open
The shell remains of tortoises of the genus Chersine (= Eurotestudo) are described from the early Pliocene of the Musait and Colibasi localities of Moldova. The incomplete shell from the Musait locality is assigned to a new species, Chersi…
View article: First reliable records of the genus <i>Chersine</i> (Testudines: Testudinidae) from the Pliocene of Moldova
First reliable records of the genus <i>Chersine</i> (Testudines: Testudinidae) from the Pliocene of Moldova Open
The shell remains of tortoises of the genus Chersine (= Eurotestudo) are described from the early Pliocene of the Musait and Colibasi localities of Moldova. The incomplete shell from the Musait locality is assigned to a new species, Chersi…
View article: W.A. Lindholm’s contributions to herpetology with an annotated bibliography of his herpetological publications
W.A. Lindholm’s contributions to herpetology with an annotated bibliography of his herpetological publications Open
This paper presents notes on the herpetological biography of W.A. Lindholm (1874–1935), a Russian-Soviet zoologist known mostly by his contributions to malacology and herpetology. His 15 herpetological publications, which are annotated in …
View article: Supernumerary scutes verify a segment‐dependent model of the horny shell development in turtles
Supernumerary scutes verify a segment‐dependent model of the horny shell development in turtles Open
Turtle horny shell has a scute pattern, which is conservative through evolution and across species. The discovery of epidermal placodes as the scute primordia and their strict topographical association to the somites of the turtle embryo s…
View article: A new brontothere from the Eocene of South China
A new brontothere from the Eocene of South China Open
Averianov, Alexander, Danilov, Igor, Chen, Wen, Jin, Jianhua (2018): A new brontothere from the Eocene of South China. Acta Palaeontologica Polonica 63 (1): 189-196, DOI: 10.4202/app.00431.2017, URL: http://dx.doi.org/10.4202/app.00431.2017
View article: A revision of fossil turtles from the Kiev clays (Ukraine, middle Eocene) with comments on the history of the collection of fossil vertebrates of A.S. Rogovich
A revision of fossil turtles from the Kiev clays (Ukraine, middle Eocene) with comments on the history of the collection of fossil vertebrates of A.S. Rogovich Open
The paper revises material of fossil turtles from the Kiev clays (Vyshgorod and Tripolye localities, Kiev Province, Ukraine; Kiev Formation, upper Lutetian – lower Bartonian, middle Eocene) from the 19th century collection of fossil verteb…
View article: Morphological and histological evidence for the oldest known softshell turtles from Japan
Morphological and histological evidence for the oldest known softshell turtles from Japan Open
Herein we report morphologically and histologically diagnostic trionychid specimens from the Barremian–Aptian (129.4–113.0 Ma) of Japan. One specimen (FPDM-V9487) is an associated skeleton that consists of a scapula, a humerus, an ischium,…
View article: Turtle shell bone and osteoderm histology of Mesozoic and Cenozoic stem-trionychian Adocidae and Nanhsiungchelyidae (Cryptodira: Adocusia) from Central Asia, Mongolia, and North America
Turtle shell bone and osteoderm histology of Mesozoic and Cenozoic stem-trionychian Adocidae and Nanhsiungchelyidae (Cryptodira: Adocusia) from Central Asia, Mongolia, and North America Open
The record of fossil turtles from the Cretaceous and Cenozoic of Asia and North America is very rich, including several lineages of cryptodiran turtles. Here we survey the shell bone histology of two important closely related groups of ste…
View article: Anthracotheriid artiodactyl <i>Anthracokeryx</i> and an upper Eocene age for the Youganwo Formation of southern China
Anthracotheriid artiodactyl <i>Anthracokeryx</i> and an upper Eocene age for the Youganwo Formation of southern China Open
The two recently collected mammalian dentary fragments from the Eocene Youganwo Formation of Guangdong Province, southern China, are referred to the anthracotheriid species Anthracokeryx naduongensis based on phylogenetic analysis and size…
View article: The cranial morphology of <i>Anosteira maomingensis</i> (Testudines, Pan-Carettochelys) and the evolution of pan-carettochelyid turtles
The cranial morphology of <i>Anosteira maomingensis</i> (Testudines, Pan-Carettochelys) and the evolution of pan-carettochelyid turtles Open
This paper describes the cranial morphology of Anosteira maomingensis, a turtle of the clade Pan-Carettochelys, based on a skull that is part of a more complete specimen from the middle-upper Eocene Youganwo Formation of Maoming, Guangdong…
View article: A new amynodontid from the Eocene of South China and phylogeny of Amynodontidae (Perissodactyla: Rhinocerotoidea)
A new amynodontid from the Eocene of South China and phylogeny of Amynodontidae (Perissodactyla: Rhinocerotoidea) Open
Cadurcodon maomingensis sp. nov. is described based on a partial skull and associated vertebrae from the middle–upper Eocene Youganwo Formation in the Maoming Basin, Guangdong Province, China. The taxonomy of Cadurcodon Kretzoi, 1942 ( = S…
View article: A new unusual waterbird (Aves, ?Suliformes) from the Eocene of Kazakhstan
A new unusual waterbird (Aves, ?Suliformes) from the Eocene of Kazakhstan Open
http://zoobank.org/urn:lsid:zoobank.org:pub:55265D97-F2EF-459D-9728-E4C433DB22F9 SUPPLEMENTAL DATA—Supplemental materials are available for this article for free at www.tandfonline.com/UJVP Citation for this article: Zvonok, E. A., N. V. Z…
View article: Morphology of cervical vertebrae of <i>Annemys</i> and variability of neck morphotypes in xinjiangchelyid turtles
Morphology of cervical vertebrae of <i>Annemys</i> and variability of neck morphotypes in xinjiangchelyid turtles Open
Background. Xinjiangchelyidae are a group of basal cryptodires from the Middle Jurassic – Early Cretaceous of Asia and Early Cretaceous of Europe. Recent studies show that xinjiangchelyids are rather uniform and conservative in their shell…
View article: Turtles of the genus <i>Sakya</i> (Geoemydidae): new material from the late Miocene of Russia and Ukraine, new taxonomic diversity and expansion of the stratigraphic range
Turtles of the genus <i>Sakya</i> (Geoemydidae): new material from the late Miocene of Russia and Ukraine, new taxonomic diversity and expansion of the stratigraphic range Open
Background. Sakya Bogachev, 1960 is a genus of geoemydid turtles with unusual scalation of the carapace consisting of 9–10 vertebrals and 8–10 pairs of pleurals. It is known from Neogene localities of Eastern Europe and includes two specie…
View article: Morphology of cervical vertebrae of <i>Annemys</i> and variability of neck morphotypes in xinjiangchelyid turtles
Morphology of cervical vertebrae of <i>Annemys</i> and variability of neck morphotypes in xinjiangchelyid turtles Open
Background. Xinjiangchelyidae are a group of basal cryptodires from the Middle Jurassic – Early Cretaceous of Asia and Early Cretaceous of Europe. Recent studies show that xinjiangchelyids are rather uniform and conservative in their shell…
View article: Late Cretaceous non-marine turtles of Asia: a review of taxonomic diversity and paleobiogeography
Late Cretaceous non-marine turtles of Asia: a review of taxonomic diversity and paleobiogeography Open
Background. This report reviews data on taxonomic diversity and paleobiogeography of Late Cretaceous (K2) non-marine turtles of Asia accumulated since latest reviews in 2000s. K2 non-marine turtles of Asia are known from four main geograph…
View article: Late Cretaceous non-marine turtles of Asia: a review of taxonomic diversity and paleobiogeography
Late Cretaceous non-marine turtles of Asia: a review of taxonomic diversity and paleobiogeography Open
Background. This report reviews data on taxonomic diversity and paleobiogeography of Late Cretaceous (K2) non-marine turtles of Asia accumulated since latest reviews in 2000s. K2 non-marine turtles of Asia are known from four main geograph…