Vasjuganskij, boreholes pr-1 1-k and pr-1 2-k, Gankin Formation, W Siberia (Cretaceous of Russian Federation)

Where: Russian Federation (59.1° N, 77.0° E: paleocoordinates 54.3° N, 64.7° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Gankin Formation, Maastrichtian (72.1 - 66.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; lithified, calcareous siltstone and lithified, calcareous claystone

• low-energy, shallow-water environment with a low sedimentation rate
• greenish-grey calcareous silts and clays

Size class: macrofossils

Primary reference: A. Kaim, A. L. Beisel, and N. I. Kurushin. 2004. Mesozoic gastropods from Siberia and Timan (Russia). Part 1: Vetigastropoda and Caenogastropoda (exclusive of Neogastropoda). Polish Polar Research 25(3-4):241-266 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 66561: authorized by Wolfgang Kiessling, entered by Uta Merkel on 10.10.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Gastropoda
 Seguenzioidea - Eucyclidae
Onkospira sp.
Onkospira sp. Zittel 1873 snail
 Heterostropha - Acteonidae
Vasjugania vasjuganensis n. gen. n. sp.
Vasjugania vasjuganensis n. gen. n. sp. snail
 Sorbeoconcha - Aporrhaidae
? Anchura sp.
? Anchura sp. Conrad 1860 snail