Sutkai-87 Borehole 836 m (Silurian of Lithuania)

Also known as Glassia Community in the Paprieniai Fm., Sutkai-87 Borehole, Lithuania

Where: Lithuania (55.0° N, 23.3° E)

• Paleocoordinates: 0.7° S, 42.5° W (Wright 2013)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Paprieniai Formation, Jaani (433.6 - 431.3 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; gray marl and lime mudstone

• "[Lithology and occurrence] suggestive of this community being dysaerobic rather than representing a normal, aerobic environment. The fauna is consistent with a BA 4-5 assignment, as is the presence of graptolites...Deposition of dark-gray and gray marls in Lithuania took place under lowered oxygen conditions well below wave base..These data also indicate...BA 4-5."
• "Widespread in dark-gray and gray marls with microcrystalline limestone interbeds of the fourth facies zone. The strata are chiefly unlaminated except at the boundary beteen black argillites and dark-gray argillaceous marls. The laminated beds rarely yield benthos, wehreas the G. Comm. is common in the unlaminated marls."

Size class: macrofossils

Collection methods: Table 21.1 gives abundances for brachiopods.

Primary reference: P. Musteikis and J. J. Paskevicius. 1999. Brachiopod communities of the Lithuanian Silurian. In A. J. Boucot, J. D. Lawson (eds.), Paleocommunities--a case study from the Silurian and Lower Devonian 305-326 [M. Foote/M. Foote/P. Wagner]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 195095: authorized by Pete Wagner, entered by Pete Wagner on 19.07.2018

Creative Commons license: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names
Rhynchonellata
 Orthida - Dalmanellidae
Isorthis clivosa
 Atrypida - Lissatrypidae
"Glassia obovata" = Lissatrypa obovata
"Glassia obovata" = Lissatrypa obovata Sowerby 1839