Hemiarges-Eophacops Assemblage, Prague Basin (Silurian of Czech Republic)

Where: Czech Republic (50.1° N, 14.5° E: paleocoordinates 52.9° S, 58.4° E)

• coordinate based on political unit

• local area-level geographic resolution

When: Kopanina Formation, Gorstian (427.4 - 425.6 Ma)

• "The exact stratigraphic assignment is under discussion, probably the lowest layers of the Kopanina Formation..."

• formation-level stratigraphic resolution

Environment/lithology: marine; shelly/skeletal, yellow grainstone

• "The lithology, fragmentary preservation of most fossils and the composition of the fauna clearly point to a high energy shallow water environment of thw volcanic elevation (BA 3 or up to 2)."
• "Fossils are contained in yellow and white coarsely biodetrital crinoidal limestones under- and overlain by volcanoclastic rocks of the Svaty Jan Centre."

Primary reference: I. Chlupac. 1987. Ecostratigraphy of Silurian trilobite assemblages of the Barrandian area, Czechoslovakia. Newsletters on Stratigraphy 17(3):169-186 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 14125: authorized by Michael Foote, entered by Michael Foote on 15.05.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• Only trilobites are listed to genus level, but many other groups reported present.
Show authors, comments, and common names
Crinoidea
  -
Crinoidea indet.
Crinoidea indet. Miller 1821 Sea lily
Bivalvia
  -
"Pelecypoda indet." = Bivalvia
"Pelecypoda indet." = Bivalvia Linnaeus 1758 clam
Gastropoda
  -
Gastropoda indet.
Gastropoda indet. Cuvier 1795 snail
Brachiopoda
  -
Brachiopoda indet.
Brachiopoda indet. Cuvier 1805
Bryozoa
  -
Bryozoa indet.
Bryozoa indet. Ehrenberg 1831
Trilobita
 Lichida - Lichidae
Dicranopeltis scabra, "Hemiarges heteroclytus" = Uripes heteroclytus
Dicranopeltis scabra Beyrich 1845 trilobite
"Hemiarges heteroclytus" = Uripes heteroclytus Barrande 1846 trilobite
 Phacopida - Phacopidae
Eophacops bulliceps
 Phacopida - Cheiruridae
Ktenoura oronapi, Cheirurus sp.
Cheirurus sp. Beyrich 1845 trilobite
 Harpetida - Harpetidae
Harpetidae indet.
Harpetidae indet. Hawle and Corda 1847 trilobite
 Corynexochida - Styginidae
Scutelluidae indet.
Scutelluidae indet. Richter and Richter 1955 trilobite
 Proetida - Proetidae
Interproetus soncobrinus
Interproetus soncobrinus Šnajdr 1980 trilobite
 Proetida - Otarionidae
"Conoparia clarimonda" = Otarion (Conoparia)
"Conoparia clarimonda" = Otarion (Conoparia) trilobite
Anthozoa
 Rugosa -
Rugosa indet.
Rugosa indet. horn coral
 Tabulata -
Tabulata indet.
Tabulata indet. tabulate coral