Gnaszyn Section A, sample Gns37: Middle Bathonian, Poland

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Holothuroidea - Apodida - Achistridae
Achistrum sp. Etheridge 1881
Boczarowski 2012 11 specimens
Holothuroidea - Apodida - Chiridotidae
Theelia sp. Schlumberger 1890
Boczarowski 2012 11 specimens
Echinoidea
Echinoidea indet. (Leske 1778)
Boczarowski 2012 33 specimens
Asteroidea
Asteroidea indet. de Blainville 1830
Boczarowski 2012 8 specimens
Ophiuroidea
Ophiuroidea indet. Gray 1840
Boczarowski 2012 39 specimens
Crinoidea
Crinoidea indet. Miller 1821
Boczarowski 2012 11 specimens
Gastropoda - Pleurotomariidae
Pleurotomariidae indet. Swainson 1840
1 specimen
Gastropoda - Eucyclidae
Eucycloscala sp. Cossmann 1895
1 specimen
Gastropoda - Skeneidae
Eudaronia pusilla (Gründel 2000)
3 specimens
Gastropoda - Heterostropha - Tubiferidae
Sinuarbullina gnaszyaensis
4 specimens
Gastropoda - Heterostropha - Mathildidae
Mathildidae indet. Dall 1889
2 specimens
Gastropoda - Cryptaulacidae
Cryptaulax sp.
3 specimens
Gastropoda - Iravadiidae
Bralitzia sp. Gründel 1998
5 specimens
Scaphopoda - Dentaliida - Laevidentaliidae
cf. Laevidentalium sp. (Cossmann 1888)
Kaim and Sztajner 2012 4 specimens
Scaphopoda - Dentaliida - Dentaliidae
cf. Dentalium sp. Linnaeus 1758
Kaim and Sztajner 2012 5 specimens
Bivalvia - Nuculanida - Nuculanidae
Nuculanidae indet. Adams and Adams 1858
Kaim and Sztajner 2012 2 specimens
Bivalvia - Pectinida - Oxytomidae
Oxytomidae indet. Ichikawa 1958
Kaim and Sztajner 2012 1 specimen
see common names

Geography
Country:Poland
Coordinates: 50.8° North, 19.0° East (view map)
Paleocoordinates:42.1° North, 26.1° East
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period: Jurassic Epoch: Middle Jurassic
Stage: Bathonian 10 m.y. bin: Jurassic 4
Key time interval: Middle Bathonian Ammonoid zone:  Morrisi
Age range of interval: 168.2 - 165.3 m.y. ago
Stratigraphy
Local section:Gnaszyn A Local bed:Gns37
Stratigraphic resolution:bed
Lithology and environment
Primary lithology:black poorly lithified claystone
Environment:transition zone/lower shoreface
Geology comments: deep-water and soft-bottom environments
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils,microfossils
Collection methods and comments
Collection methods:sieve,field collection
Reason for describing collection:general faunal/floral analysis
Collection method comments: The samples (approx. 5kg each) were taken from each lithologically distinct horizon of the succession. They were washed with hot water and washing powder on a sieve (mesh size 0.375 mm) and fossils were picked from residues under the microscope
Taxonomic list comments:Numbers of specimen of gastropodes, bivalves, scaphopodes and shark teeth are explicitely stated, number of echinoderms is roughly based on proportional plots; total number of echinoderms within this collection is 114 specimen.
Metadata
Database number:141270
Authorizer:M. Aberhan Enterer:T. Schossleitner
Modifier:T. Schossleitner Research group:marine invertebrate
Created:2013-03-23 06:28:25 Last modified:2013-03-28 04:24:10
Access level:the public Released:2013-03-23 06:28:25
Creative Commons license:CC BY
Reference information

Primary reference:
45930. A. Kaim. 2012. Faunal dynamics of Gastropods in the Bathoninan (Middle Jurrasic) ore-bearing clays at Gnaszyn, Krakow-Silesia Homocline, Poland. Acta Palaeontologica Polonica 62(3):367-380 [M. Aberhan/T. Schossleitner]

Secondary references:

45993 A. Boczarowski. 2012. Palaeoenvironmental interpretation of echinoderm assemblages from Bathonian ore-bearing clays at Gnaszyn (Kraków-Silesia Homocline, Poland). Acta Palaeontologica Polonica 62(3):351-366 [M. Aberhan/T. Schossleitner]
45956 A. Kaim and P. Sztajner. 2012. Faunal dynamics of bivalves and scaphopods in the Bathonian (Middle Jurassic) ore-bearing clays at Gnaszyn, Kraków-Silesia Homocline, Poland. Acta Palaeontologica Polonica 62(3):381-395 [M. Aberhan/T. Schossleitner]