Actinopteria migrans migrans Community in the Chelm borehole, eastern Poland (Silurian of Poland)

Where: Poland (53.2° N, 23.5° E: paleocoordinates 16.3° S, 2.7° E)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Pridoli (423.0 - 419.2 Ma)

• Monograptus bouceki-M. angustidens biozones.

Environment/lithology: marine; mudstone

• "The dominant species filled a niche, occurred in large clumps, and the individuals were attached at the bottom to each other. A suspension-feeding mode of life indicates favorable conditions above the sea floor."
• "Dark mudstone bedding planes covered by disarticulated shells."

Collection methods: Despite distribution, text seems to imply that all faunal elements are found at type locality.

Primary reference: L. Teller and A. J. Boucot. 1999. Polish Ludlow-Lower Devonian communities. In A. J. Boucot and J. D. Lawson (eds.), Paleocommunities--a case study from the Silurian and Lower Devonian 350-354 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 23022: authorized by Michael Foote, entered by Michael Foote on 08.07.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• Graptolites not included in list. Not possible to determine with certainty from ref. 6630 which graptolites are found in these beds.
Show authors, comments, and common names
Graptolithina
  -
Graptolithina indet.
Bivalvia
 Ostreida - Pterineidae
Actinopteria migrans, Actinopteria innotata, "Leiopteria contraria" = Leptodesma (Leiopteria), Leiopteria opportuna
Actinopteria migrans oyster
A. migrans migrans
"Leiopteria contraria" = Leptodesma (Leiopteria) oyster
Leiopteria opportuna Barrande 1881 oyster
 Myalinida - Ambonychiidae
Mytilarca pojetai, Mytilarca elongata
 Myalinida - Lunulacardiidae
Pterochaenia tenuis, Pterochaenia chelmiensis, Lunulacardium undulatum, Lunulacardium evolvens
 Cyrtodontida - Cardiolidae
Cardiolinka concubina
 Cyrtodontida - Antipleuridae
Dualina convexa, Dualina cf. consors