Ivane Horizon from Krowie Bagno IG-1, Tentaculitida (Devonian of Poland)

Where: Poland (51.4° N, 23.3° E: paleocoordinates 18.6° S, 10.4° E)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Ivane Horizon Formation, Pragian (410.8 - 407.6 Ma)

• Borehole, 1768.0-1730.2 m

Environment/lithology: marine; mudstone and dolomitic claystone

• mudstones and claystones: dolomitic and then decalcified

Primary reference: B. Hajlasz. 1974. Tentaculites of the Upper Silurian and Lower Devonian of Poland. Acta Palaeontologica Polonica 19(4):455-500 [A. Miller/J. Wittmer]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 81168: authorized by Arnold Miller, entered by Jacalyn Wittmer on 08.06.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Trilobita
  -
Trilobita indet. Walch 1771 trilobite
Tentaculita
 Volynitida - Dicricoconidae
 Homoctenida - Homoctenidae
Homoctenus "sp. A" Ljaschenko 1955
Bivalvia
  -
"Pelecypoda indet." = Bivalvia
"Pelecypoda indet." = Bivalvia Linnaeus 1758 clam
Brachiopoda
  -
Brachiopoda indet. Cuvier 1805
Lophophorata
 Tentaculitida -
 Tentaculitida - Uniconidae
 Tentaculitida - Tentaculitidae
 Tentaculitida - Multiconidae
Multiconus "sp. B" Ljaschenko 1955
 Tentaculitida - Contractenidae
Contractenus sp. Ljaschenko 1959