Rybushka Formation Explained

Rybushka Formation
Type:	Geological formation
Age:	Campanian ~
Period:	Campanian
Prilithology:	Sandstone
Otherlithology:	Phosphorite
Region:	Penza, Saratov
Coordinates:	51.3°N 45°W
Paleocoordinates:	42.6°N 40.2°W

The Rybushka Formation is a Campanian geologic formation in the Penza and Saratov Oblasts of European Russia. Pterosaur, fish and invertebrate fossils have been recovered from the formation.^{[1] [2]}

Fossil content

The following fossils have been reported from the formation:

• Amylodon karamysh
• Archaeolamna kopingensis
• Bogolubovia orientalis
• Cretolamna appendiculata
• Ischyodus bifurcatus
• Volgadraco bogolubovi
• Pseudocorax laevis
• Squalicorax kaupi
• Squatina hasei
• Chalmys sp.
• Edaphodon sp.
• Elasmodus sp.
• Eostriatolamia sp.
• Gryphaeostrea sp.
• Heterodontus sp.
• Monticulina sp.
• Prognathodon sp.
• Solariella sp.
• Squatirhina sp.
• ?Clidastes sp.
• Chelospharginae indet.
• Elasmobranchii indet.
• Elasmosauridae indet.
• Enchodontidae indet.
• Mosasauridae indet.
• Plesiosauria indet.
• Polycotylidae indet.
• Testudinata indet.
• ?Thoracosaurinae indet.

See also

• List of pterosaur-bearing stratigraphic units

Further reading

• M. S. Arkhangelsky, A. O. Averianov, and E. M. Pervushov. 2007. Short-necked plesiosaurs of the Family Polycotylidae from the Campanian of the Saratov Region. Paleontological Journal 41(6):656-660
• A. V. Averianov and E. V. Popov. 2014. A pterosaurian vertebra from the Upper Cretaceous of the Saratov Region. Paleontological Journal 48(3):326-329
• A. O. Averianov, M. S. Arkhangelsky, and E. M. Pervushov. 2008. A new Late Cretaceous azhdarchid (Pterosauria, Azhdarchidae) from the Volga region. Paleontological Journal 42(6):634-642
• A. O. Averianov. 2007. New records of azhdarchids (Pterosauria, Azhdarchidae) from the Late Cretaceous of Russia, Kazakhstan, and Central Asia. Paleontological Journal 41(2):189-197
• N. N. Bogoliubow. 1914. O ozvonkye pterodaktilya iz verkhnemelovykh otlozheniy Saratovskoy gubernii [A pterodactyl vertebra from the Upper Cretaceous deposits of Saratov province]. Ezhegodnikie po Geologii i Mineralogii Rossii/Annuaire Géologique et Minéralogique de la Russie 16(1):1-7

Notes and References

1. Book: Fossil Record 3: Bulletin 53. New Mexico Museum of Natural History and Science. 2011-01-01. en. Robert M.. Sullivan. Spencer G.. Lucas. Justin A.. Spielmann.
2. Review of taxonomy, geographic distribution, and paleoenvironments of Azhdarchidae (Pterosauria). ZooKeys. 2014-08-11. 1313-2989. 4141157. 25152671. 1–107. 432. 10.3897/zookeys.432.7913. Alexander. Averianov. free. 2014ZooK..432....1A .