Lochkovella-Lochkothele Community, Prague Basin (Devonian of Czech Republic)

Where: Czech Republic (50.0° N, 14.3° E)

• Paleocoordinates: 17.9° S, 7.1° E (Wright 2013)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Monograptus hercynicus zone, Radotini Member (Lochkow Formation), Lochkovian (419.2 - 410.8 Ma)

• Late Lochkovian sequence below the base of the Pragian, Monograptys hercynicus Zone.

• member-level stratigraphic resolution

Environment/lithology: marine; gray lime mudstone and calcareous shale

• "The changes in grain size, layers of coarser clastic material, graded bedding, sorting of organic remains and their concentration in thin layers, all point to less stable conditions and to pulses of higher energy. Large, even very fragile shells are commonly well preserved, and articulated trilobites are present. Although short distance transport should be considered, the assemblage broadly corresponds to the original population. A deeper subtidal shelf to slope environment of medium energy is inferred within the BA 4-5 position."
• "The Lochkov Formation consists of two basic lithofacies corresponding to the Kotys Member (light gray, thicker bedded, sparitic limestones) and the Radotin Member (dark, bituminous, platy biomicrites to biosparites with shale interbeds..." "...occurring in dark, bituminous, platy biomicritic to finely biosparitic limestones, with a variable amount of dark, calcareous shale intercalations..."

Size class: macrofossils

Collection methods: NB: Trilobites of this Community were already entered in PBDB Collection 10314. Several faunal elements mentioned only at higher taxonomic levels.

Primary reference: V. Havlicek and P. Storch. 1999. Silurian and Lochkovian communities in the Prague basin (Barrandian area, Czech Republic). in A. J. Boucot and J. D. Lawson, eds. Paleocommunities--a case study from the Silurian and Lower Devonian. Cambridge University Press, Cambrdige. 200-228 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 14121: authorized by Michael Foote, entered by Michael Foote on 15.05.2002

Creative Commons license: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Albertiproetus sp., Raphiostomina sp.
Trilobita
 Phacopida - Phacopidae
"Lochkovella misera" = Denckmannites miser, Reedops sp.
"Lochkovella misera" = Denckmannites miser Barrande 1852 trilobite
Reedops sp. Richter and Richter 1925 trilobite
 Phacopida - Cheiruridae
Crotalocephalina sp.
Crotalocephalina sp. Pibyl and Vanek 1964 trilobite
 Odontopleurida - Odontopleuridae
Ceratocephala sp., Leonaspis (Leonaspis) lochkovensis, Ceratonurus sp.
Ceratocephala sp. Warder 1838 trilobite
Leonaspis (Leonaspis) lochkovensis Prantl and Přibyl 1949 trilobite
Ceratonurus sp. Prantl and Pribyl 1949 trilobite
 Corynexochida - Styginidae
Spiniscutellum umbelliferum, Decoroscutellum sp.
Decoroscutellum sp. Snajdr 1958 trilobite
 Harpetida - Harpetidae
? Lioharpes sp., Kielania sp.
? Lioharpes sp. Whittington 1950 trilobite
Kielania sp. Vanek 1963 trilobite
 Proetida - Tropidocoryphidae
Decoroproetus sp., Ranunculoproetus sp.
Decoroproetus sp. Pribyl 1946 trilobite
Ranunculoproetus sp. Snajdr 1977 trilobite
 Proetida - Scharyiidae
Scharyia angusta
Scharyia angusta Pribyl 1966 trilobite
 Proetida - Proetidae
Lepidoproetus lepidus, Coniproetus sp.
Lepidoproetus lepidus Barrande 1846 trilobite
Coniproetus sp. Alberti 1966 trilobite
 Proetida - Otarionidae
"Otarion (Conoparia) novaki" = Conoparia novaki
"Otarion (Conoparia) novaki" = Conoparia novaki Bouček 1935 trilobite
 Lichida - Lichidae
"Lobopyge sp." = Belenopyge
"Lobopyge sp." = Belenopyge Pek and Vanek 1991 trilobite
Malacostraca
 Phyllocarida -
Phyllocarida indet.
Euchelicerata
 Eurypterida - Pterygotidae
Acutiramus bohemicus
Acutiramus bohemicus Barrande 1872 eurypterid
Tentaculita
 Homoctenida - Paranowakiidae
Homoctenowakia sp., Paranowakia sp.
Homoctenowakia sp. Alberti 1984
Paranowakia sp. Boucek 1964
Cephalopoda
 Nautiloidea -
Nautiloidea indet.
Nautiloidea indet. Agassiz 1847 nautiloid
Gastropoda
 Murchisoniina - Loxonematidae
Loxonema sp.
Loxonema sp. Phillips 1841 snail
 Bellerophontida - Pterothecidae
"Carinariopsis sp." = Carinaropsis
"Carinariopsis sp." = Carinaropsis Hall 1847 snail
Bivalvia
 Myalinida - Lunulacardiidae
Lunulacardium sp.
Lunulacardium sp. Münster 1840 clam
 Ostreida - Vlastidae
Sluzka sp.
Sluzka sp. Barrande 1881 oyster
 Ostreida - Pterineidae
"Leiopteria (Actinopteria) sp." = Leptodesma (Leiopteria)
"Leiopteria (Actinopteria) sp." = Leptodesma (Leiopteria) Hall 1883 oyster
 Cyrtodontida - Praecardiidae
Neklania sp.
Neklania sp. Růžička and Přibyl 1953 clam
 Cyrtodontida - Antipleuridae
Hercynella sp., Panenka sp.
Hercynella sp. Kayser 1878 clam
Panenka sp. Barrande 1881 clam
Rhynchonellata
 Spiriferida - Delthyrididae
Howellella inchoans, Howellella digitatioides
Howellella digitatioides
genus name in quotes
 Athyridida - Athyrididae
"Athyridae indet." = Athyrididae, ? Jarovathyris sp.
"Athyridae indet." = Athyrididae McCoy 1841
 Rhynchonellida - Glossinotoechiidae
Eoglossinotoechia doris
Strophomenata
 Strophomenida - Sowerbyellidae
Plectodonta mimica
 Strophomenida - Strophochonetidae
Leptochonetes aff. tardus
 Orthotetida - Chilidiopsidae
Iridistrophia iris
 Orthotetida - Areostrophiidae
Areostrophia interjecta
Lingulata
 Discinida - Disciniidae
Lochkothele intermedia
 Lingulida - Obolidae
? Rafanoglossa sp.
? Rafanoglossa sp. Havlicek 1980
"small lingulids (probably Rafanoglossa)"
Hyolitha
  -
Hyolitha indet.
Hyolitha indet. Marek 1963
unclassified
  -
Chordata indet.
Chordata indet. Haeckel 1874
"rare fishes"
Conodonta
  -
Conodonta indet.
Conodonta indet. Pander 1856 conodont
Graptolithina
  -
Graptolithina indet.
Chitinozoa
 Chitinozoa -
Chitinozoa indet.
Chitinozoa indet. Nõlvak 2007