Chrtníky quarry, Unit 8f [Bilá Fm] (Cretaceous of Czech Republic)

Where: Czech Republic (50.0° N, 15.6° E: paleocoordinates 40.1° N, 14.6° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Bilá Formation, Early/Lower Turonian (93.5 - 89.3 Ma)

• STRATIGRAPHIC RELATIONS: From the Bilá Fm, which overlies the Korycany Mbr of the Peruc-Korycany Fm. AGE: Early Turonian, presumably on the basis of foraminiferal and macrofossils biostratigraphy. STRATIGRAPHIC POSITION: From a deep depression, named the Giant Channel, situated in the eastern part of the quarry. Collection is from near top of section, Unit 8f (clayey siltstone with diverse macrofauna), which is about 1-1.4 m thick.

• bed-level stratigraphic resolution

Environment/lithology: marine; poorly lithified, gray, yellow, silty claystone

• SPECIFIC LITHOLOGY: Clayey siltstone, soft, greyish-slightly yellowish. LITHIFICATION: Poorly lithified, on the basis of facies description and figured specimens.

Size class: macrofossils

Collected by Vodrazka & Zitt

Collection methods: bulk, surface (in situ),

• COLLETORS: Vodrazka & Zitt. REPOSITORY: Institute of Geology (Academy of Sciences of the Czech Republic) in Prague.

Primary reference: J. Zitt, R. Vodrázka, L. Hradecká, M. Svobodová, and K. Zágorsek. 2006. Late Cretaceous environments and communities as recorded at Chrtníky (Bohemian Cretaceous Basin, Czech Republic). Bulletin of Geosciences 81(1):43-79 [A. Hendy/A. Hendy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 90518: authorized by Austin Hendy, entered by Austin Hendy on 04.08.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for macro invertebrates and microfossils. NOMENCLATURE: Not an authoritative publication, but with relatively modern nomenclature and species-resolution identifications.
Malacostraca
 Decapoda - Necrocarcinidae
Necrocarcinus sp. Bell 1863 crab
Maxillopoda
 Scalpelliformes - Scalpellidae
Scalpellidae indet. Pilsbry 1907 barnacle
 Scalpelliformes - Calanticidae
Cretiscalpellum glabrum Roemer 1841 barnacle
Rhynchonellata
 Thecideida - Thecideidae
 Terebratulida - Cancellothyrididae
Terebratulina chrysalis Schlotheim 1813
 Rhynchonellida - Cyclothyrididae
Craniata
 Craniida - Craniidae
Bivalvia
 Pectinida - Entoliidae
"Syncyclonema nilssoni" = Syncyclonema nilsoni
"Syncyclonema nilssoni" = Syncyclonema nilsoni Goldfuss 1835 scallop
 Pectinida - Pectinoidae
 Pectinida - Plicatulidae
 Ostreida - Gryphaeidae
"Hyotissa semiplana" = Hyotissa semipiana Sowerby 1825 oyster
Gryphaeostrea canaliculata Sowerby 1813 oyster
 Mytilida - Mytilidae
"Septifer lineatus" = Mytilus (Septifer)
"Septifer lineatus" = Mytilus (Septifer) mussel
Gymnolaemata
 Cheilostomata - Calloporidae
 Cheilostomata - Onychocellidae
 Cheilostomata -
Stenolaemata
 Cyclostomata - Cerioporidae
Tholopora novaki Gregory 1909
 Cyclostomata - Entalophoridae
 Cyclostomata -
 Cyclostomata - Diastoporidae
Diastopora sp. Lamouroux 1821
 Cyclostomata -
 Cyclostomata - Eleidae
Pteraspidomorpha
  - Thelodontidae
Chondrichthyes
 Hybodontiformes - Ptychodontidae
 Lamniformes - Anacoracidae
Squalicorax falcatus Agassiz 1843 crow shark
 Lamniformes -
 Lamniformes - Odontaspididae
Ophiuroidea
 Ophiuroidea -
Ophiuroidea indet. brittle star
Asteroidea
 Valvatida - Stauranderasteridae
Stauranderaster sp. Spencer 1907 sea star
 Valvatida - Sphaerasteridae
Valettaster ocellatus Forbes 1848 sea star
 Valvatida -
Arthraster cristatus Spencer 1907 sea star
 Valvatida - Goniasteridae
Metopaster sp. Sladen 1893 sea star
Metopaster thoracifer Geinitz 1871 sea star
Echinoidea
 Cidaroida - Psychocidaridae
Tylocidaris sorigneti pencil urchin
Crinoidea
 Isocrinida - Isocrinidae
unclassified
  -
Porifera indet. Grant 1836
Demospongea
 Tetralithistida - Siphoniidae
Siphonia geinitz demosponge
 Spirosclerophorida - Scleritodermatidae
 Spirosclerophorida - Azoricidae
Chonella sp. Zittel 1878 demosponge
Cytoracia obesa demosponge
Hexactinellida
 Innaecoeliida - Craticulariidae
Botroclonium arborescens Pocta 1883 glass sponge
Laocoetis vulgata Pocta 1883 glass sponge
 Lychniscosa -
 Hexactinosa - Cribrospongiidae
Guettardiscyphia sp. Fromentel 1860 glass sponge
 Hexactinosa - Cystispongiidae
Cystispongia morchella Pocta 1883 glass sponge