A large pteranodontid pterosaur from the Late Cretaceous of Eastern Europe

The Campanian Beloe Ozero locality within the Rybushka Formation in Saratov Province, Russia, is one of the richest and most diverse Upper Cretaceous pterosaur localities in Europe. It produces identifiable remains of Pteranodontidae indet. and Azhdarchidae indet., as well as bones which can be attributed to either of these groups. The pteranodontid specimens from the Beloe Ozero locality described in this paper include a cervical III, distal scapula, humerus deltopectoral crest, proximal syncarpal, preaxial carpal and complete femur. Based on the femur and proximal syncarpal, the wingspan estimate for the Beloe Ozero pteranodontid varies from 5.2 to 6.5 m. Volgadraco bogolubovi, known from the neighbouring Shyrokii Karamysh locality of the same formation and attributed previously to the Azhdarchidae, is more likely pteranodontid than azhdarchid. The other putative records of the Pteranodontidae in the Late Cretaceous of North America, Europe and Asia are discussed. Pteranodontid pterosaurs had a much wider distribution on the northern continents in the Late Cretaceous than previously thought.

[1]  François Therrien,et al.  Cryodrakon boreas, gen. et sp. nov., a Late Cretaceous Canadian Azhdarchid Pterosaur , 2019, Journal of Vertebrate Paleontology.

[2]  E. Popov,et al.  Basicranium of an elasmosaurid plesiosaur from the Campanian of European Russia , 2018 .

[3]  D. Martill,et al.  Late Maastrichtian pterosaurs from North Africa and mass extinction of Pterosauria at the Cretaceous-Paleogene boundary , 2018, PLoS biology.

[4]  N. Zelenkov,et al.  New finds of hesperornithids in the European Russia, with comments on the systematics of Eurasian Hesperornithidae , 2017, Paleontological Journal.

[5]  S. Bennett.  New smallest specimen of the pterosaur Pteranodon and ontogenetic niches in pterosaurs , 2017, Journal of Paleontology.

[6]  A. Averianov,et al.  An azhdarchid humerus (Pterosauria, Azhdarchidae) from the Upper Cretaceous of Saratov Region , 2016, Paleontological Journal.

[7]  Xiaolin Wang,et al.  Redescription of the first pterosaur remains from Japan: the largest flying reptile from Asia , 2016 .

[8]  M. Arkhangelsky,et al.  A record of Clidastes propython Cope (Squamata, Mosasauridae) in the Upper Cretaceous of the Saratov Region, Russia , 2015, Paleontological Journal.

[9]  A. Averianov.  Review of taxonomy, geographic distribution, and paleoenvironments of Azhdarchidae (Pterosauria) , 2014, ZooKeys.

[10]  A. Averianov,et al.  A pterosaurian vertebra from the Upper Cretaceous of the Saratov Region , 2014, Paleontological Journal.

[11]  B. Andres,et al.  Lone Star Pterosaurs , 2012, Earth and Environmental Science Transactions of the Royal Society of Edinburgh.

[12]  A. Averianov.  Ornithostoma sedgwicki – valid taxon of azhdarchoid pterosaurs , 2012, Proceedings of the Zoological Institute RAS.

[13]  E. Buffetaut,et al.  New pterosaurian remains from the late cretaceous (santonian) of hungary (iharkút, csehbánya formation) , 2011 .

[14]  A. Kellner,et al.  NEW PTEROSAUR SPECIMENS FROM THE KEM KEM BEDS (UPPER CRETACEOUS, CENOMANIAN) OF MOROCCO , 2011 .

[15]  A. O. Averianov,et al.  The osteology of Azhdarcho lancicollis Nessov, 1984 (Pterosauria, Azhdarchidae) from the Late Cretaceous of Uzbekistan , 2010, Proceedings of the Zoological Institute RAS.

[16]  George F. Eaton,et al.  Osteology of Pteranodon , 2009 .

[17]  E. M. Pervushov,et al.  A new late Cretaceous azhdarchid (Pterosauria, Azhdarchidae) from the Volga Region , 2008 .

[18]  E. M. Pervushov,et al.  Short-necked plesiosaurs of the family Polycotylidae from the Campanian of the Saratov Region , 2007 .

[19]  A. Averianov.  New records of Azhdarchids (Pterosauria, Azhdarchidae) from the late Cretaceous of Russia, Kazakhstan, and Central Asia , 2007 .

[20]  S. Bennett.  The Osteology and Functional Morphology of the Late Cretaceous Pterosaur Pteranodon Part II. Size and Functional Morphology , 2001, Palaeontographica Abteilung A.

[21]  S. Bennett.  The Osteology and Functional Morphology of the Late Cretaceous Pterosaur Pteranodon Part I. General Description of Osteology , 2001, Palaeontographica Abteilung A.

[22]  D. Unwin,et al.  A survey of pterosaurs from the Jurassic and Cretaceous of the former Soviet Union and Mongolia , 1995 .

[23]  S. Bennett.  Taxonomy and systematics of the Late Cretaceous pterosaur Pteranodon (Pterosauria, Pterodactyloidea) , 1994 .

[24]  S. Christopher Bennett,et al.  Sexual dimorphism of Pteranodon and other pterosaurs, with comments on cranial crests , 1992 .

[25]  S. Bennett.  A pteranodontid pterosaur from the Early Cretaceous of Peru, with comments on the relationships of Cretaceous pterosaurs , 1989, Journal of Paleontology.

[26]  K. Padian.  A large pterodactyloid pterosaur from the Two Medicine Formation (Campanian) of Montana , 1984 .

[27]  P. Galton,et al.  Pterosaur bones from the Upper Cretaceous of Delaware , 1981 .

[28]  D. A. Lawson,et al.  Pterosaur from the Latest Cretaceous of West Texas: Discovery of the Largest Flying Creature , 1975, Science.

[29]  H. W. Miller,et al.  The Taxonomy of the Pteranodon Species from Kansas , 1971 .

[30]  H. Miller.  A Skull of Pteranodon (Longicepia) longiceps Marsh Associated With Wing and Body Bones , 1971 .

[31]  C. W. Gilmore.  A NEW OCCURRENCE OF THE FLYING REPTILE, PTERANODON. , 1935, Science.

[32]  F. Loomis.  THE AMERICAN SOCIETY OF VERTEBRATE PALEONTOLOGY. , 1908, Science.

[33]  G. F. Eaton.  Characters of Pteranodon , 1904 .

[34]  G. F. Eaton.  The characters of Pteranodon. , 1903 .

[35]  O. C. Marsh.  Principal characters of American Cretaceous pterodactyls; Part 1, The skull of Pteranodon , 1884, American Journal of Science.

[36]  O. C. Marsh.  Discovery of additional remains of Pterosauria with descriptions of two new species , 1872, American Journal of Science.

[37]  D. Martill,et al.  Possible azhdarchoid pterosaur remains from the Coniacian (Late Cretaceous) of England , 2008 .

[38]  Y. Tomida,et al.  Description of a new species of Anhangueridae(Pterodactyloidea) with comments on the pterosaur fauna from the Santana Formation(Aptian-Albian), northeastern Brazil , 2000 .

[39]  S. Bennett.  The ontogeny of Pteranodon and other pterosaurs , 1993, Paleobiology.

[40]  I. Obata,et al.  Preliminary Report on the Cretaceous Reptile Fossils from Hokkaido , 1972 .

[41]  S. Williston.  On the osteology of Nyctosaurus (Nyctodactylus), with notes on American pterosaurs / By Samuel W. Williston -- ; Oliver Cummings Farrington -- , 1903 .