Leiopteria contraria Community in the Chelm borehole, eastern Poland (Silurian to of Poland)

Where: Poland (53.2° N, 23.5° E: paleocoordinates 16.2° S, 4.3° E)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Pridoli to Pridoli (423.0 - 410.8 Ma)

• Both Pridolian and Lochkovian are spanned: Monograptus bouceki, M. perneri, M. angustidens, and M. uniformis biozones.

Environment/lithology: marine; calcareous mudstone

• "Shallow, influenced by current activity."
• "Disarticulated shells occur on bedding planes of dark, calcareous mudstone."

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 23028: authorized by Michael Foote, entered by Michael Foote on 08.07.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• Because of the vertical spread of these beds, it is not possible to tell with certainty from ref. 6630 which graptolites are present.
Show authors, comments, and common names
Graptolithina
  -
Graptolithina indet.
Bivalvia
 Myalinida - Lunulacardiidae
Lunulacardium undulatum, Lunulacardium evolvens
 Ostreida - Pterineidae
"Leiopteria contraria" = Leptodesma (Leiopteria), Actinopteria migrans, Actinopteria innotata, Cheiopteria tenuis, Cheiopteria chelmiensis
"Leiopteria contraria" = Leptodesma (Leiopteria) oyster
Actinopteria migrans oyster
A. migrans migrans
 Cyrtodontida - Antipleuridae
Dualina cf. consors