Gnaszyn, Czestochowa region, Slaskie (Jurassic of Poland)

Where: Poland (50.8° N, 19.1° E: paleocoordinates 42.0° N, 26.1° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Middle Bathonian (167.7 - 164.7 Ma)

• Morrisiceras morrisi Zone

• group of beds-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; poorly lithified 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 classes: mesofossils, microfossils

Preservation: original aragonite

Collection methods: sieve,

• Rock samples collected over the period 1995-2002; the material is housed at the Institute of Paleobiology, Polish Academy of Sciences (PAS) in Warsaw (abbreviated ZPAL) and the Museum of the Earth PAS in Warsaw (abbreviated MZ).

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 63078: authorized by Martin Aberhan, entered by Sabine Nürnberg on 04.08.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

• Focus on gastropods.
Show authors, comments, and common names
Gastropoda
 Heterostropha - Mathildidae
"Promathildia conoidea" = Jurilda conoidea, "? Carinathilda naricatoidea n. sp." = Angulathilda naricatoidea
"Promathildia conoidea" = Jurilda conoidea Grundel 1997 snail
"? Carinathilda naricatoidea n. sp." = Angulathilda naricatoidea Kaim 2004 snail
 Heterostropha - Tubiferidae
Sinuarbullina gnaszynensis n. sp.
Sinuarbullina gnaszynensis n. sp. Kaim 2004 snail
over 100 shells
 Heterostropha - Cornirostridae
Bandellina riedeli
Bandellina riedeli Gründel 1998 snail
 Seguenzioidea - Eucyclidae
Turcica gerasimovi, "Calliotropis biarmata" = Biarmatoidella lorioli
Turcica gerasimovi Kaim 2004 snail
"Calliotropis biarmata" = Biarmatoidella lorioli Greppin 1898 snail
juvenile
 Seguenzioidea - Pseudoturcicidae
"Turcica wareni n. sp." = Pseudoturcica wareni
"Turcica wareni n. sp." = Pseudoturcica wareni Kaim 2004 snail
 Trochoidea - Ataphridae
Striatoconulus latus
Striatoconulus latus Gründel 2000 snail
juvenile
 Zygopleuroidea - Pseudozygopleuridae
Plocezyga gruendeli n. sp.
Plocezyga gruendeli n. sp. Kaim 2004 snail
 Sorbeoconcha - Hipponicidae
Gnaszynium baumilleri n. gen. n. sp.
Gnaszynium baumilleri n. gen. n. sp. Kaim 2004 hoof shell
 Sorbeoconcha - Newtoniellidae
Cosmocerithium antiquum
Cosmocerithium antiquum Gründel 2001 snail
over 100 shells
 Neogastropoda - Maturifusidae
Astandes ticurelatus
Astandes ticurelatus Gründel 2001 snail