PBDB Collection

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

Also known as Shyrokyi Karamysh

Where: Saratov, Russian Federation (51.4° N, 45.0° E: paleocoordinates 42.6° N, 40.0° E)

• coordinate stated in text

• small collection-level geographic resolution

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

• Phosphatic conglomerate up to 400 mm thick. Shark fauna is characteristic of the Early Campanian, and bed 3 in a nearby exposure yields Belemnitella mucronata, which co-occurs with the sharks in Early Campanian phosphatic chalks in the Paris basin.

• bed-level stratigraphic resolution

Environment/lithology: shoreface; bioturbated, glauconitic, nodular, phosphatic, black, brown sandstone

• "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

• Repository: Saratov State University

•

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 Matthew Clapham and Richard Butler

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names

Reptilia
Plesiosauria - Polycotylidae	Polycotylidae indet. Polycotylidae indet. Williston 1908 plesiosaur
Plesiosauria - Elasmosauridae	Elasmosauridae indet. Elasmosauridae indet. Cope 1869 elasmosaur
Pterosauria - Pteranodontidae	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., ? Clidastes sp. Prognathodon sp. Dollo 1889 mosasaur ? Clidastes sp. Cope 1868 mosasaur
Actinopteri
Aulopiformes - Enchodontidae	Enchodontidae indet. Enchodontidae indet. Woodward 1901
Chondrichthyes
Chimaeriformes - Callorhynchidae	Ischyodus cf. bifurcatus Ischyodus cf. bifurcatus Case 1978 plownose chimaera
Chimaeriformes - Rhinochimaeridae	Amylodon karamysh n. sp. Amylodon karamysh n. sp. Averianov and Popov 1995 chimaera
Chimaeriformes - Edaphodontidae	Edaphodon sp. Edaphodon sp. Buckland 1838 chimaera
Lamniformes - Otodontidae	Cretolamna borealis Cretolamna borealis Priem 1897 mackerel shark
Lamniformes - Pseudocoracidae	Pseudocorax laevis Pseudocorax laevis Leriche 1906 mackerel shark
Lamniformes -	"Pseudoisurus arcuatus" = Pseudisurus "Pseudoisurus arcuatus" = Pseudisurus mackerel shark
Lamniformes - Odontaspididae	Eostriatolamia ex gr. subulata Eostriatolamia ex gr. subulata Agassiz 1843 sand tiger shark