Bed 16, Ogrodzieniec Quarry (Jurassic of Poland)

Where: Poland (50.5° N, 19.5° E: paleocoordinates 42.0° N, 26.5° E)

• coordinate stated in text

• small collection-level geographic resolution

When: Quenstedtoceras lamberti + Quenstedtoceras mariae ammonoid zone, Jasna Gora Formation, Late/Upper Callovian (164.7 - 161.2 Ma)

• The ammonite assemblage found in bed 16 includes both Quenstedtoceras lamberti and Q. mariae (Rozycki 1953; Barski et al. 2004), diagnostic fossils for the uppermost Callovian and lowermost Oxfordian, respectively. This bed most likely spans the boundary of these two stages and is dated to include both Lamberti and Mariae Zones (Dembicz and Praszkier 2003; Barski et al. 2004).

• bed-level stratigraphic resolution

Environment/lithology: offshore shelf; lithified, concretionary, glauconitic, phosphatic, sandy marl

• Sandy, glauconitic marls with numerous phosphatic concretions

Size classes: mesofossils, microfossils

Preservation: original phosphate

Collected in 2004

Collection methods: chemical, acetic, sieve,

• Repository: Institute of Paleobiology at the Polish Academy of Sciences, Warsaw, under the collection number ZPAL P 12. The wet and somewhat consolidated sediment was frozen and the disintegrated material washed through a large sieve with a mesh size of 0.355 mm. The residues from the washing were dissolved in buffered acetic acid (see Jeppsson et al. 1999 for details) to concentrate phosphatic fossils, and the insoluble residues were searched under a binocular microscope.

Primary reference: J. Rees. 2010. Neoselachian Sharks from the Callovian-Oxfordian (Jurassic) of Ogrodzieniec Zawiercie Region, Southern Poland. Palaeontology 53(4):887-902 [M. Clapham/C. Feng/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 117993: authorized by Matthew Clapham, entered by Christina Feng on 30.09.2011, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Synechodontiformes - Orthacodontidae
Sphenodus sp. Agassiz 1843 elasmobranch
Sphenodus longidens Agassiz 1843 elasmobranch
 Synechodontiformes - Palaeospinacidae
Synechodus sp. Woodward 1888 elasmobranch
"Synechodus" prorogatus Kriwet 2003 elasmobranch
 Synechodontiformes - Paraorthacodontidae
Paraorthacodus sp. Glikman 1957 elasmobranch
 Euselachii - Protospinacidae
Protospinax "sp. 1" Woodward 1919 elasmobranch
Protospinax "sp. 2" Woodward 1919 elasmobranch
 Hexanchiformes - Hexanchidae
Hexanchidae indet. Gray 1851 cow shark
 Hexanchiformes - Crassodontidanidae
Notidanoides sp. Maisey 1986 elasmobranch
 Orectolobiformes -
Ornatoscyllium sp. Underwood and Ward 2004 carpet shark
Akaimia altucuspis n. gen. n. sp. Rees 2010 carpet shark
 Orectolobiformes - Hemiscylliidae
? Palaeobrachaelurus sp. Thies 1983 carpet shark
Pseudospinax sp. Müller and Diedrich 1991 carpet shark