Tofta Beds Brachiopods (Silurian of Sweden)
Where: Gotland, Sweden (57.5° N, 18.4° E: paleocoordinates 18.4° S, 2.5° W)
• coordinate based on political unit
• local area-level geographic resolution
When: Tofta Beds Formation, Sheinwoodian (428.2 - 426.2 Ma)
• Correlation from Jeppsson (1983), Fossils and Strata 15:128
• group of beds-level stratigraphic resolution
Environment/lithology: lagoonal or restricted shallow subtidal; oncoidal limestone and reef rocks
• SEP: Silurian of Gotland has been variably described as a ramp and platform. Based on my read of the literature, I think if falls best into the ramp category. From Samtleben et al. (1996). Geol. Rundsch 85:278-292; "Predominant in this unit are oncolitic limestones and biostromal carbonate buildups which were formed by algae and a few stromatopore species. A monotonous benthic association comprised only of a few species indicates restricted marine, somewhat lagoonal conditions. Mud cracks are evidence of episodic emersion and desiccation."
Primary reference: M. G. Bassett and L. R. M. Cocks. 1974. A review of Silurian brachiopods from Gotland. Fossils and Strata (3)1-56 [M. Foote/M. Foote/M. Foote] more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 13526: authorized by Michael Foote, entered by Michael Foote on 12.04.2002