Sample PG 34, Psie Gorki Section, Holy Cross Mountains (Devonian of Poland)

Where: Poland (50.8° N, 20.7° E: paleocoordinates 16.0° S, 27.9° E)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Early/Lower Famennian (376.1 - 370.6 Ma)

• 47 samples collected from thickness of about 8.5 meters surrounding Frasnian-Famennian boundary, which is placed at base of bed 8. This collection is number PG 34 from within bed 9. [JA: the Famennian part of the section extends up to the Palmatolepis crepida zone, so it is entirely early Famennian]

• bed-level stratigraphic resolution

Environment/lithology: marine; shelly/skeletal grainstone

• Overall sequence interpreted as open marine photic zone, fore shoal (beds 1 to 4; microfacies 1 to 3) to mixed algal backshore and crinoidal foreshore (beds 5 through 11; microfacies 4). Several microfacies are also recognized: 1. burrowed bioclastic wackestones and packstones. 2. burrowed bioclastic peloidal packstones (2a. fine-gr. packstones, heavily bioturbated; 2b. coarser packstones with larger bioclasts). 3. peloidal laminated bioclastic grainstones (3a. fine grainstones with same bioclasts as microfacies 2; 3b. coarser, with cross-stratification and alternation of fine and coarse bioclastic laminae); 4. coarse grained floatstones and grainstones (4a. microconglomeratic floatstones with corals; 4b. coarse grainstone-rudstone with a few oncoids and rare micritized ooids; 4c. med.. to coarse crinoidal grainstone rich in subrounded microbreccias). This collection is 4b.
• See geology comments.

Primary reference: J.-G. Casier, X. Devleeschouwer, F. Lethiers, A. Preat, and G. Racki. 2002. Ostracods and fore-reef sedimentology of the Frasnian-Famennian boundary beds in Kielce (Holy Cross Mountains, Poland). Acta Palaeontologica Polonica 47(2):227-246 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 35404: authorized by Michael Foote, entered by Michael Foote on 09.12.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

• Only ostracodes are listed. Stromatoporoids, crinoids and corals also said to be present in this succession.
 Palaeocopida -