Uppermost Zahorany Fm. (Ordovician of Czech Republic)

Where: Prague, Czech Republic (50.0° N, 14.0° E)

• Paleocoordinates: 63.6° S, 13.2° E (Wright 2013)

• coordinate estimated from map

• small collection-level geographic resolution

When: Belonechitina robusta other zone, Zahorany Formation, Berounian (457.9 - 449.8 Ma)

• Listed as Uppermost Middle Berounian; Uppermost portion

• group of beds-level stratigraphic resolution

Environment/lithology: offshore shelf; poorly lithified, argillaceous, silty shale

• Clayey shales with admixture of silt

Size classes: macrofossils, mesofossils

Primary reference: V. Havlicek and J. Vanek. 1990. Ordovician Invertebrate communities in black-shale lithofacies (Prague Basin, Czechoslovakia). Vestnik Ustredniho Ustavu Geologickeho 65:223-236 [A. Miller/P. Novack-Gottshall/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 76474: authorized by Phil Novack-Gottshall, entered by Paul Hearn on 21.11.2007

Creative Commons license: CC0 (CC0)

Taxonomic list

• Faunal list from layer(s) immediately below the iron ore boundary layer between Zahorany and Bohdelac formations; treating as pooled samples
Show authors, comments, and common names
 Sphaeronitida - Aristocystitidae
Aristocystites sp.
Aristocystites sp. Barrande 1887
"Rare"
Trilobita
 Corynexochida - Styginidae
Cekovia sp.
Cekovia sp. Snajdr 1956 trilobite
"Associated" taxa
 Odontopleurida - Odontopleuridae
Selenopeltis sp., Chlustinia sp.
Selenopeltis sp. Hawle and Corda 1847 trilobite
"Frequent"
Chlustinia sp. Pribyl and Vanek 1965 trilobite
"Frequent"
 Phacopida - Dalmanitidae
Eudolatites sp.
Eudolatites sp. Delo 1935 trilobite
"Most common"
 Phacopida - Homalonotidae
Calymenella sp.
Calymenella sp. Bergeron 1890 trilobite
"Rare"
 Phacopida - Calymenidae
Flexicalymene sp., Prionocheilus sp.
Flexicalymene sp. Shirley 1936 trilobite
"Most common"
Prionocheilus sp. Rouault 1847 trilobite
"Rare"
 Phacopida - Cheiruridae
Eccoptochile sp., Actinopeltis sp.
Eccoptochile sp. Hawle and Corda 1847 trilobite
"Associated" taxa
Actinopeltis sp. Hawle and Corda 1847 trilobite
"Associated" taxa
 Asaphida - Cyclopygidae
Bohemilla sp.
Bohemilla sp. Barrande 1872 trilobite
"Very rare"
 Asaphida - Asaphidae
Nobiliasaphus sp.
Nobiliasaphus sp. Pribyl and Vanek 1965 trilobite
"Rare"