Borehole Bialopole, Upper Bostovian: Lochkovian, Poland

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Crinoidea
Crinoidea indet. Miller 1821
Pterobranchia - Graptoloidea - Monograptidae
Monograptus microdon
Ostracoda
Ostracoda indet. Latreille 1802
Trilobita
Trilobita indet. Walch 1771
Trilobita - Proetida - Proetidae
Podolites cf. rugulosus (Alth 1874)
Trilobita - Phacopida - Acastidae
Acastava patula (Hollard 1963)
Acastava cf. roualti (Tromelin and Lebesconte 1876)
Tentaculitida - Tentaculitidae
Tentaculitidae indet. Walcott 1886
unclassified
Bryozoa indet. Ehrenberg 1831
Brachiopoda indet. Cuvier 1805
Polychaeta
Polychaeta indet. Grube 1850
Bivalvia
Bivalvia indet. Linnaeus 1758
Cephalopoda
Cephalopoda indet. Cuvier 1797
see common names

Geography
Country:Poland
Coordinates: 51.0° North, 23.7° East (view map)
Paleocoordinates:3.8° North, 29.7° West (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period: Devonian Epoch: Early Devonian
Stage: Lochkovian 10 m.y. bin: Devonian 1
Key time interval: Lochkovian
Age range of interval: 419.2 - 410.8 m.y. ago
Stratigraphy
Local section:Bialopole Local bed:1520'0-1430'0 m
Local order:bottom to top
Stratigraphy comments: Upper Bostovian
Lithology and environment
Primary lithology: siltstone
Environment:deep subtidal indet.
Geology comments: Silurian deposits in the investigated area range in age:: from the Wenlockian across Devonianboundary. They represent the graptolite-shaly facies with siltstones in the upper part of the section. These deposits pass continuously into the Lower Devonian represented by claystones and siltstones intercalated commonly with layers and lenses of limestones enclosing an abundant marine fauna. The siltstones become upwards more and more sandy and comprise commonly layers of fine-grained quartz sandstones; they are often mottled and display commonly mud cracks. This is a typical Oldred fades; it is attributed to the Siegenian to Emsian. Thus, the marine sedimentation persisted in the investigated area continuously all through the Silurian and Lower Devonian. The earliest regression is marked in the Lower Siegenian deposits, while the
terrestrial oldred-type sedimentation became prevalent in the Upper Siegenian.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils,microfossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Metadata
Database number:145993
Authorizer:W. Kiessling Enterer:M. Krause
Research group:marine invertebrate
Created:2013-06-14 18:43:57 Last modified:2025-02-22 15:12:02
Access level:authorizer only Released:2013-09-14 18:43:57
Creative Commons license:CC0
Reference information

Primary reference:
47112. R. Wrona. 1980. Upper SiIurian-Lower Devonian Chitinozoa from the subsurface of southeastern Poland. Palaeontologia Polonica 41:103-165 [W. Kiessling/M. Krause]