near Zelezna Village (Silurian of Czech Republic)

Also known as Zelkovice Formation, carbonate facies

Where: Czech Republic (50.0° N, 14.1° E: paleocoordinates 61.3° S, 67.6° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Demirastrites convolutus - Stimulograptus sedgwickii graptolite zone, Zelkovice Formation, Aeronian (440.8 - 438.5 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; calcareous shale and limestone

• "The discovery of carbonate facies in the upper parts of the Zelkovice Formation near Zelezna Village close to Beroun (Havlicek and Kriz 1973) changed previous views of Llandovery sedimentation in the basin. In the large tectonic block preserved within the zone of the Prague Fault the Llandovery is represented by basalts accompanied by granulates and overlain by calcareous tuffites. The youngest part of the block is formed by a sequence of tuffaceous and calcareous shales with tuffaceous laminated limestones, which contain a rick non-graptolite fauna of D. convolutus to M. sedwickii Biozones (Aeronian)..."

Size class: macrofossils

Collection methods: Elements mentioned on p. 12 of Kriz (1992). This is almost certainly a subset of collection 14087.

Primary reference: J. Kříž. 1992. Silurian field excursions: Prague Basin (Barrandian), Bohemia. National Museum of Wales, Geological Series 13:1-111 [M. Foote/M. Foote/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 14085: authorized by Michael Foote, entered by Michael Foote on 13.05.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• "Brachiopods, trilobites and dendroids have been described in addition to a large fauna of graptolites, crinoids and ostracodes. Most characteristic are: [list]" I.e., only the most characteristic elements are listed. It is not clear where the rest are described; the only paper cited is Havlicek and Kriz (1973), which I will check once it has come in from interlibray loan.
Show authors, comments, and common names
Crinoidea
  -
Crinoidea indet.
Crinoidea indet. Miller 1821 Sea lily
Graptolithina
  -
Graptolithina indet.
Pterobranchia
  - Cyclograptidae
? Reticulograptus varians
 Dendroidea - Acanthograptidae
Thallograptus bohemicus, Thallograptus krizi, Dictyonema hyskovicense
Rhynchonellata
 Pentamerida - Stricklandiidae
Stricklandia sp.
Stricklandia sp. Billings 1859
 Orthida - Glyptorthidae
Glyptorthis sagana
 Orthida - Plectorthidae
Giraldibella hyskovensis
Giraldibella hyskovensis Havlícek 1977
 Orthida - Chrustenoporidae
"Rhactorthis wrighti" = Jezercia wrighti
"Rhactorthis wrighti" = Jezercia wrighti Havlicek 1977
 Orthida - Draboviidae
Hirnantia ginna
 Orthida - Saukrodictyidae
Saukrodictya arcana
Strophomenata
 Strophomenida - Aegiromenidae
"Aegironetes lunula" = Aegiria
"Aegironetes lunula" = Aegiria
Trilobita
 Proetida - Aulacopleuridae
Aulacopleura krizi
 Corynexochida - Illaenidae
Stenopareia pulchella
 Odontopleurida - Odontopleuridae
Selenopeltis caloxyl, Leonaspis orphana
 Lichida - Lichidae
Trochurus sarfi, Dicranopeltis imperfecta
Trochurus sarfi Snajdr 1980 trilobite
Dicranopeltis imperfecta Snajdr 1975 trilobite
 Harpetida - Harpetidae
Bohemoharpes naumanni
Bohemoharpes naumanni Barrande 1852 trilobite
 Phacopida - Calymenidae
Diacalymene horbingeri
 Phacopida - Cheiruridae
Hadromeros sp., Youngia sp.
Hadromeros sp. Lane 1971 trilobite
Youngia sp. Lindström 1885 trilobite
 Phacopida - Encrinuridae
Balizoma mareki
Balizoma mareki trilobite
Deuteropoda
  -
Ostracoda indet.
Ostracoda indet. Latreille 1802 ostracod