Shirokii Karamysh 2 (bed 2) (Cretaceous of Russian Federation)

Where: Saratov, Russian Federation (51.3° N, 45.0° E: paleocoordinates 42.6° N, 40.2° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Rybushka Formation, Early/Lower Campanian (83.5 - 70.6 Ma)

• bed-level stratigraphic resolution

Environment/lithology: foreshore; black, brown, sandy phosphorite

• "active sublittoral zone"
• "Phosphorite horizon: the upper part is composed of bright green, quartz–glauconitic, strongly bioturbinated sand, with phosphorites up to 0.5–1 cm in size, regularly scattered and slightly accumulated in the roof. In the lower part, phosphorites are dark brown, black, sabulous, and angular and black, more rounded. Phosphorites and phosphorite accumulations are abundant. In places, phosphorite inclusions are widely spaced; in some sites (up to 1.5–2.5 m in size), they are accumulated, smaller in size, 1–1.5 cm in diameter. The grayish yellow and grayish brown aleuritic inclusions are more rounded, with signs of bioerosion, more widely spaced and mostly smaller in size." Fossils in lower portion.

Size class: macrofossils

Preservation: replaced with phosphate

Collected by M.A. Grigor’ev, A.L. Gorbunov-Gusev, & A.N. Gurenko in 2004-2005

• collected by amateur collectors M.A. Grigor’ev, A.L. Gorbunov-Gusev, and A.N. Gurenko

Primary reference: 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 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 86332: authorized by Matthew Carrano, entered by Matthew Carrano on 29.01.2009, edited by Richard Butler

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Pterosauria - Azhdarchidae
Volgadraco bogolubovi n. gen. n. sp.
Volgadraco bogolubovi n. gen. n. sp. Averianov et al. 2008 pterosaur
SGU nos. 46-50/104a, partial mandible, cervical vertebrae, notarium, femur
 Squamata - Mosasauridae
Prognathodon sp. Dollo 1889 mosasaur
? Clidastes sp. Cope 1868 mosasaur
 Sauropterygia - Polycotylidae
Polycotylidae indet. Williston 1908 plesiosaur
 Sauropterygia - Elasmosauridae
Elasmosauridae indet. Cope 1869 elasmosaur