Also known as Zakhar'yevskiy Rudnik; Zakhar'evskii Rudnik; Zakharievskii Rudnik

Where: Ulyanovsk, Russian Federation (54.4° N, 48.4° E: paleocoordinates 48.1° N, 50.3° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Speetoniceras versicolor ammonoid zone, Late/Upper Hauterivian (136.4 - 130.0 Ma)

• unnamed unit - g-3.1 horizon, in the lower part of the Speetoniceras versicolor Zone

• bed-level stratigraphic resolution

Environment/lithology: marine; fine-grained, pyritic, gray claystone

Size class: macrofossils

Preservation: concretion, replaced with pyrite

Collected by V. Efimov in 1982, 1984-1987

Collection methods: surface (in situ), mechanical,

Primary reference: V. M. Efimov. 1997. On a find of a fossil sauropod from the marine Hauterivian of the middle Volga Region. Paleontological Journal 31(6):653-654 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 94539: authorized by Matthew Carrano, entered by Matthew Carrano on 25.02.2010, edited by Philip Mannion

Creative Commons license: CC BY (attribution)