Korwinow, Czestochowa region, Slaskie (Jurassic of Poland)

Where: Poland (50.8° N, 19.2° E: paleocoordinates 42.0° N, 26.2° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Early/Lower Bathonian (167.7 - 164.7 Ma)

• The section exposed black clay which is attributed by J. Dzik (unpublished data) to the Zigzagiceras zigzag Zone of the Early Bathonian.

• group of beds-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; poorly lithified, black claystone

• Most of the gastropods studied in this monograph come from clayey facies of more or less open sea environments (there is no detailed information for the distinct localities provided).

Size class: mesofossils

Preservation: original aragonite

Collection methods: sieve,

• The gastropod collection was collected in 1971 by J. Dzik and is housed at the Institute of Paleobiology PAS, Warsaw.

Primary reference: A. Kaim. 2004. The evolution of conch ontogeny in Mesozoic open sea gastropods. Palaeontologia Polonica 62:1-183 [M. Aberhan/S. Nurnberg/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 67615: authorized by Martin Aberhan, entered by Sabine Nürnberg on 28.11.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

• Focus on gastropods.
Gastropoda
 Cerithioidea - Cryptaulacidae
Cryptaulax quenstedti Walther 1951 snail