Davit Vasilyan

Davit Vasilyan
JURASSICA Museum

PD Dr

About

60
Publications
22,777
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527
Citations
Citations since 2016
43 Research Items
457 Citations
2016201720182019202020212022020406080100
2016201720182019202020212022020406080100
2016201720182019202020212022020406080100
2016201720182019202020212022020406080100
Additional affiliations
December 2015 - November 2022
JURASSICA Musée
Position
  • Senior Researcher
November 2009 - October 2015
University of Tuebingen
Position
  • PostDoc Position
October 2007 - September 2008
Ludwig-Maximilians-University of Munich
Position
  • PhD student

Publications

Publications (60)
Article
Full-text available
The present study describes a rich amphibian and reptilian assemblage from the early Miocene locality Echzell, Germany. It consists of one allocaudate, five salamander, five frog, one gecko, chamaeleonids, anguine lizards, one lacertid, one skink and five snake taxa. The entire herpetofauna of Echzell is represented by genera and/or families very b...
Article
Monitor lizards (genus Varanus ) are today distributed across Asia, Africa and Australasia and represent one of the most recognizable and successful lizard lineages. They include charismatic living species like the Komodo dragon of Indonesia and the even larger extinct Varanus prisca ( Megalania ) of Australia. The fossil record suggests that livin...
Article
Full-text available
The Global climate reorganisation in the late Pliocene linked to enhancement of the Atlantic Ocean Thermohaline Circulation (AOTC), instigated a transition to glacial-interglacial cyclicity in the Quaternary. Enhancement of the AOTC amplified atmospheric precipitation over the Eurasian interior strengthening Northern Hemisphere Glaciation. Increase...
Article
Full-text available
Lacustrine deposits of Juro-Cretaceous age in northeastern China have yielded some of the best-preserved fossils of early crown salamanders. One of those taxa, Chunerpeton tianyiense, has been considered as a crown or stem member of the family Cryptobranchidae, significant for implying a long evolutionary history for cryptobranchids and for calibra...
Article
Full-text available
The maxillary presented in this work has been excavated in the middle Miocene karst filling Petersbuch 136 (Germany, Bavaria) and shows the oldest evidence of dental anomaly in a sciurid. The aberrant morphology, probably hyperdontia or no replacement of roots of deciduous teeth, affects the area of the P3, a tooth that is generally not well docume...
Article
This paper presents the first fossil fish, amphibian and reptilian fauna from Bosnia and Herzegovina Dinarides. The fauna of ectothermic vertebrates of the Bugojno palaeolake, dated to 15.2–14.0 Ma, composes of killifishes (Cyprinodontiformes indet.), a barb (Barbini indet. (aff. Barbus), a crocodile newt (Chelotriton sp.), a painted frog (Latonia...
Article
The early middle Miocene (European Land Mammal Zone MN5-earliest MN6) locality Gračanica (Bugojno Basin, Bosnia-Herzegovina) has yielded numerous well-preserved dental remains of two Anchitheriinae species: Anchitherium hippoides and Anchitherium ezquerrae. This anchithere assemblage is typical of the Orleanian European Land Mammal Age and is recor...
Article
Full-text available
Cenozoic ectothermic continental tetrapods (amphibians and reptiles) have not been documented previously from Antarctica, in contrast to all other continents. Here we report a fossil ilium and an ornamented skull bone that can be attributed to the Recent, South American, anuran family Calyptocephalellidae or helmeted frogs, representing the first m...
Article
Full-text available
The Batrachosauroididae are an enigmatic group of salamanders known from the cretaceous and Tertiary of North America and Europe. In Europe, the family is known only by two species of the genus Palaeoproteus. The genus has limited distribution in Western and Central Europe. In the present paper, we describe a new species, Palaeoproteus miocenicus,...
Article
Full-text available
The Southern Caucasus, with its special geographic position and complex topography, is a well-known biodiversity hotspot. However, the formation of this hotspot remains largely unstudied. To reveal this, a thorough study of the fossil record of the region is necessary. In the present paper, we describe for the first time fossil monitor lizards (Var...
Article
In this paper, we describe ectothermic vertebrate assemblages from the Kargı 1, Kargı 2, Kargı 3, Harami1, Harami 3, Hancılı, Keseköy, Çandır and Bağiçi localities in Turkey. The ages of these localities range from the latest Oligocene to the middle Miocene. The preserved non-mammalian fauna of the studied localities includes fishes (Luciobarbus sp...
Article
Full-text available
During systematic paleontological surveys in the Na Duong Basin in North Vietnam between 2009 and 2012, well-preserved fossilized cranial and postcranial remains belonging to at least 29 individuals of a middle to late Eocene (late Bartonian to Priabonian age (39-35 Ma)) alligatoroid were collected. Comparative anatomical study of the material warr...
Article
Full-text available
We herein describe the fossil amphibians and reptiles from the Neogene (latest Miocene or earliest Pliocene; MN 13/14) locality of Maramena, in northern Greece. The herpetofauna is shown to be extremely diverse, comprising at least 30 different taxa. Amphibians include at least six urodelan (Cryptobranchidae indet., Salamandrina sp., Lissotriton sp...
Article
Full-text available
We studied 4 Ma old isolated pharyngeal teeth from lake sediments of C ¸ evirme (Tekman Palaeolake, Erzurum Province). Based on shape characters defined for 3D models of modern species, we found that the Pliocene lake constitutes sympatric occurrence of four Capoeta species (C. cf. umbla, C. cf. baliki, C. cf. sieboldi and C. sp. sevangi/capoeta),...
Data
Frequency distribution of recorded shape classes in the Ҫevırme sample (n = 247). (TIF)
Data
The frequency (in % of all studied teeth, n = 247) of the tooth positions for isolated fossil pharyngeal teeth from Ҫevırme. (TIF)
Data
The distribution of the extant ten Capoeta species, used for comparison. (PDF)
Article
Full-text available
For the first time a very rich and diverse fossil assemblage was described from the Shine Us locality in south western Mongolia. The sample represents floodplain deposits of the Beger Fm., including aquatic and terrestrial fossils such as freshwater ostracods, fishes, gastropods, reptiles, birds, as well as thirty mammal species. The concentrations...
Article
Full-text available
Courrier scientifique du Parc naturel régional du Luberon et de la Réserve de biosphère Luberon-Lure, n°15, 58-69
Article
The earliest Miocene (Aquitanian, 23–21 Ma) Hang Mon Formation at Hang Mon in Northern Vietnam has yielded a rich assemblage of terrestrial gastropods. Four species from this assemblage belong to the land caenogastropod superfamily Cyclophoroidea. Three of these are assigned to genera with Recent representatives in Southeast Asia and are described...
Article
Full-text available
Background Amphibians, due to their ecophysiological peculiarities, have a physiology dependent on environmental conditions and sensitively respond to their changes. Here, the oldest record of the genus Thaumastosaurus is described, whose fossil record known exclusively from Western Europe is discussed in the scope of the climatic changes of 33.5–4...
Data
Table summarizing the localities with fossil record of Thaumastosaurus and Ranidae / Rana sp. / ? Rana sp Abbreviations: cor, coracoid; hum, humerus; il, ilium; svert, sacral vertebra; psvert, praesacral vertebra, T, Thaumastosaurus, R, Ranidae / Rana sp. / ? Rana sp. The localities (22–24) studied in the present paper are in bold.
Article
Full-text available
Capoeta is a herbivorous cyprinid fish genus, widely distributed in water bodies of Western Asia. Recent species show a distinct biogeographic pattern with endemic distribution in large fluvial drainage basins. As other cyprinids, the species of this genus are characterized by the presence of the pharyngeal bone with pharyngeal teeth. Despite this,...
Article
Full-text available
The Neogene snake fauna from the central and eastern regions of Eurasia is still largely unknown. This paper reports on a unique snake fauna from the late middle Miocene of the Baikadam and Malyi Kalkaman 1 and 2 localities, northeastern Kazakhstan, which represents the best-documented Miocene snake assemblage in Central Asia. Previous studies admi...
Article
Current scientific knowledge of Tertiary fossils from south of the Ailao Shan-Red River shear zone is extremely poor, in sharp contrast with the situation nowadays, as the area of Laos and Vietnam is regarded as a global hotspot of biodiversity. In this context, the few localities that yielded fossil assemblages are of first importance for the unde...
Article
With its well-preserved archaeological and environmental records, Aghitu-3 Cave permits us to examine the settlement patterns of the Upper Paleolithic (UP) people who inhabited the Armenian Highlands. We also test whether settlement of the region between ∼39–24,000 cal BP relates to environmental variability. The earliest evidence occurs in archaeo...
Conference Paper
Full-text available
The late middle Miocene vertebrate fauna from northeastern Kazakhstan (Baikadam, Malyi Kalkaman 1 and 2; ~12.7‒12.1 Ma) provided the best documented Miocene snake assemblage in central Asia. In total 10 taxa belonging to three families have been reported including: Boidae: Albaneryx cf. volynicus, Boinae gen. et sp. indet.; Colubridae: Coluber cf....
Article
Full-text available
Fossil anguine lizard specimens from several Turkish localities are described in this paper. The material comes from ten different localities, spanning a large geographic area consisting of both parts of the European Turkey and Anatolia, and ranging in age from the Oligocene to the Late Miocene. In certain cases, the generic determination was possi...
Article
Full-text available
Background The present-day amphibian and reptile fauna of Western Siberia are the least diverse of the Palaearctic Realm, as a consequence of the unfavourable climatic conditions that predominate in this region. The origin and emergence of these herpetofaunal groups are poorly understood. Aside from the better-explored European Neogene localities y...
Data
Precipitation reconstructions. Western Siberian localities, their ages, estimated palaeoprecipitation values, present-day precipitation near the localities and their reference climate station, precipitation difference to present day values, relative precipitation to present-day values, and faunal content.
Data
Overview of the amphibian, reptile and small mammal faunas from the Western Siberian localities studied in this work (in red) and according to published data (in pink). Asterisks indicate the localities according to the literature data, the material of which was partially studied in this work. The species of small mammal linages are indicated in si...
Data
Ages, biochronologic, magneto- and lithostratigraphic data of the studied localities from Western Siberia. The numbering of the localities corresponds to the locality numeration in the Figs. 1, 2, S1 and S4.
Data
List of localities with amphibian and reptiles faunas according to the literature data, accompanied with other vertebrate groups. We provide also available assignments to stratigraphic horizons, ages, svitas, basins and literature sources. The locality numbering corresponds to the locality enumeration given in the Figs. 1 and 2, as well as in the S...
Data
Fossil records of the studied groups. European fossil occurrences of Hynobiidae, Proteidae, Chelotriton, Tyltotriton, Bombina, Palaeobatrachidae, Pelobatidae, Hyla, Bufo bufo gr., Bufotes viridis gr., Rana, Pelophylax according to B?hme & Ilg (2003).
Article
Full-text available
The present work presents the first report of fossil fish fauna from the Pliocene of the Dacic Basin. So far, the fish remains from the sediments of the Dacic Basin were scarcely studied. Recently, during a field campaign, fossil material from the locality Podari, Craiova region of the Dacic Basin has been collected. In this work, we present the fi...
Article
Citation for this article: Vasilyan, D., M. Böhme, and J. Klembara. 2016. First record of fossil Ophisaurus (Anguimorpha, Anguidae) from Asia. Journal of Vertebrate Paleontology. DOI: 10.1080/02724634.2016.1219739.
Article
Full-text available
Background. Now-a-day territory of Western Siberia has the poorest diversity of amphibians and reptiles within the Palaearctic Realm, influenced by unfavourable climate. Less is known about the origin and emergence of it. Aside from better-explored European Neogene records of amphibians and reptiles, the Neogene herpetofauna of Western Asia is unde...
Article
Full-text available
Background. Now-a-day territory of Western Siberia has the poorest diversity of amphibians and reptiles within the Palaearctic Realm, influenced by unfavourable climate. Less is known about the origin and emergence of it. Aside from better-explored European Neogene records of amphibians and reptiles, the Neogene herpetofauna of Western Asia is unde...
Chapter
Wasser war und ist die Grundlage des Lebens auf der Erde. Entstanden in der Tiefe des Urozeans, hat das Leben eine lange Geschichte hinter sich. Viele Millionen von Jahren waren notwendig, um im Wasser aus einfachen chemischen Verbindungen komplexe, für das Leben geeignete Biomoleküle zu bilden. Die Urformen des Lebens bekamen ihre Gestalt in Unter...
Article
Full-text available
The rich and diverse fossil mammalian assemblage from Gratkorn (Middle Miocene, Austria) is of primary im-portance for the understanding of the faunal evolution in Central Europe. Besides large mammals, the fauna comprises: Schizogalerix voesendorfensis, Galericinae gen. et sp. indet., Desmanodon fluegeli, Dinosorex sp., cf. Myotis sp., "Cricetodon...
Article
In this paper, we present the ectothermic vertebrate fauna from the late Middle Miocene locality Gratkorn (Austria). In total, 2 fish, 8 amphibian and 17 reptile taxa have been described. Among them reptiles are the most abundant group. Fish remains are very rare and comprise only small-sized cyprinids (Leuciscinae indet.) and gobiids (Gobiidae ind...
Article
Full-text available
An Early Pleistocene lacustrine faunal assemblage from Pasinler (Erzurum Province, north-eastern Turkey) is described, which encompasses 13 mollusc, 5 fish, 2 amphibian, 1 reptile, and 1 mammal species. The autochthonous freshwater mollusc fauna indicates shallow stagnant waters and a fine-sandy to muddy lake bottom, grown with submersed plants. Th...
Article
We present new and well-preserved giant salamander material from the Miocene of the Grytsiv locality, Ukraine. Disarticulated skull and postcranial bones from two individuals are described as a new taxon, Ukrainurus hypsognathus, gen. et sp. nov. U. hypsognathus is characterized by poorly ossified bone tissues, relatively inflexible mandibles, a hi...
Article
Full-text available
Based on our investigations and literature data the annotated checklist of fossil fishes of Armenia were presented. The checklist includes 30 fish taxa, which belong to 9 orders. Two of these taxa are elasmobranchii (Trias to Cretaceous periods), the 28 taxa are teleostei (Cretaceous – Pleistocene periods). It is possible to follow the major palaeo...
Article
Full-text available
The oldest and largest member of giant salamanders (Cryptobranchidae) Aviturus exsecratus appears in the latest Paleocene (near the Paleocene-Eocene Thermal Maximum) of Mongolia. Based on femoral and vertebral morphology and metrics, a terrestrial adaptation has been supposed for this species. A detailed morphological reinvestigation of published a...
Article
Cryptobranchids represent a group of large sized (up to 1.8 m) tailed amphibians known since the Middle Jurassic (Gao & Shubin 2003). Two species are living today in eastern Eurasia: Andrias davidianus (China) and A. japonicus (Japan). Cenozoic Eurasian fossil giant salamanders are known with two genera and two or three species from over 30 localit...
Article
The Tabriz Basin is located in NW Iran within the collision zone of the Arabian and Eurasian plates. Its Upper Miocene and ?Pliocene basin fill, termed Lignite Beds and Fish Beds, can provide detailed insights into the Neogene environments and processes during a time of intense tectonics and volcanism. However, a modern re-evaluation of the Lignite...
Article
Full-text available
Karyotypes of six species of Cypriniformes from the water bodies of Armenia—blackbrow Acanthalburnus microlepis, white bream Blicca bjoerkna transcaucasica, chub Leuciscus cephalus orientalis, stone moroco Pseudorasbora parva, mursa Barbus mursa, and Angora stone loach Barbatula angorae were studied. The karyotype of A. microlepis is represented by...
Article
A new fossil fish species, Aphanius yerevanicus (Cyprinodontiformes, Cyprinodontidae), is described based on a well-preserved, articulated skeleton from the early Upper Miocene of Yerevan, Armenia (Eastern Paratethys). The fish-bearing sediments contain a fossil assemblage indicative of a euryhaline environment. The new species differs from previou...
Article
The fossil fishes from the middle, lower Pliocene and middle Pleistocene of Armenia are described in this paper. The reservoirs of these periods were inhabited by the fishes of the cyprinid subfamilies Barbinae, Cyprininae and Leuciscinae. For the first time the fossil fishes from the localities Koturvan and Sevan 1 are described. Ijase on the lite...

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Projects (4)
Project
The late Miocene (11.6-11.4 Ma) Hammerschmiede locality (Allgäu, Bavaria, Germany) provides, besides hominid fossils (Danuvius guggenmosi), a spectacular diversity of vertebrates (fishes, amphibians, reptiles, birds, mammals) comprising over 130 species. This project aims to describe this heritage in biodiversity from taxonomic and pelaeoecologic points of view.