Lower Zone 7 (Cambrian of Czech Republic)

Where: Litavka, Czech Republic (49.0° N, 14.0° E: paleocoordinates 42.5° S, 107.1° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Paradoxides gracilis trilobite zone, Jince Formation, Middle Cambrian (509.0 - 497.0 Ma)

• Listed as Zone 7 - Paradoxides gracilis biozone (=Zone 4 of Chlupac, 1993)

• group of beds-level stratigraphic resolution

Environment/lithology: offshore shelf; poorly lithified, sandy shale

• Prodelatic influence in lower, fossiliferous portion of 20m-thick zone, with background basinal facies; deposition in graben basin. Listed as deep prodeltaic
• Gray-green shales with a variable sandy admixture

Size classes: macrofossils, mesofossils

Primary reference: I. Chlupáč, V. Turek, and J. Barrande. 1998. Palaeozoic of the Barrandian (Cambrian to Devonian) 1-183 [G. Webster/G. Webster/M. Uhen]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 76455: authorized by Phil Novack-Gottshall, entered by Paul Hearn on 20.11.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

Edrioasteroidea
 Edrioasterida -
Lepidocystoidea
  - Lepidocystidae
Vyscystis sp. Fatka and Kordule 1990
Eocrinoidea
 Gogiida - Eocrinidae
  - Lichenoididae
Lichenoides priscus Barrande 1846
  -
Ctenocystoidea
  -
"Etoctenocystis bohemicus" = Etoctenocystis bohemica, "Acanthocystites briareus" = Etoctenocystis bohemica
"Etoctenocystis bohemicus" = Etoctenocystis bohemica Barrande 1887
"Acanthocystites briareus" = Etoctenocystis bohemica Barrande 1887
Lingulata
 Lingulida - Obolidae
Westonia bohemica Koliha 1921
Trilobita
 Redlichiida - Paradoxididae
Paradoxides gracilis Boeck 1827 trilobite
Hydrocephalus minor trilobite
"minor"
 Ptychopariida - Conokephalinidae
"Lobocephalina emmrichi" = Conokephalina
"Lobocephalina emmrichi" = Conokephalina trilobite
 Ptychopariida - Ptychopariidae
Ptychoparia striata Whitfield 1878 trilobite
 Ptychopariida - Conocoryphidae
Conocoryphe sulzeri Schlotheim 1823 trilobite
Artiopoda
 Agnostida - Spinagnostidae
Hypagnostus sp. Jaeckel 1909
 Agnostida - Peronopsidae
Peronopsis sp. Corda 1847
 Bradoriida -