Where: Gotland, Sweden (57.7° N, 18.5° E: paleocoordinates 21.4° S, 2.9° W)
• coordinate based on nearby landmark
• local area-level geographic resolution
When: Ozarkodina sagitta rhenana conodont zone, Hangvar Formation (Slite Group), Sheinwoodian (433.4 - 430.5 Ma)
• Slite D in Lindström; given area and lithology, this should be in the Hangvar formation.
• group of beds-level stratigraphic resolution
Environment/lithology: lithified limestone
•
•From Samtleben et al. (1996). Geol. Rundsch 85:278-292; "...this unit consists of a carbonate platform with reef mounds and surrounding shoal sediments of mostly pure biodetritic and pleoidal limestones. Here slow and discontinuous accumulation of carbonate material continued in a very shallow water but under normal marine conditions....to the south and southwest the carbonate platform passes with a conspicuous slope into a deeper shelf basin where a uniform alternation of micritic limestones and marls accumulated."
Size class: macrofossils
Collection methods: peel or thin section,
Primary reference: G. Lindström. 1884. The Silurian Gastropoda and Pteropoda of Gotland. Kongliga Svenska Vetenskaps-Akademiens Handlingasr 19:1-250 [P. Wagner/P. Wagner/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 155698: authorized by Pete Wagner, entered by Pete Wagner on 24.04.2014
Creative Commons license: CC BY (attribution)
Taxonomic list
| Gastropoda | |
|
Oriostoma globosum von Schlotheim 1820 snail | |
"Euomphalus gotlandicus" = Pachystrophia gotlandicus
"Euomphalus gotlandicus" = Pachystrophia gotlandicus Lindström 1884 snail | |
"Trochus fulminatus n. sp." = Siluriphorus fulminatus
"Trochus fulminatus n. sp." = Siluriphorus fulminatus Lindström 1884 snail | |
"Pleurotomaria alata" = Euomphalopterus alatus
"Pleurotomaria alata" = Euomphalopterus alatus Wahlenberg 1821 snail | |
"Murchisonia attenuata" = Michelia whiteavesi
"Murchisonia attenuata" = Michelia whiteavesi Clarke and Ruedemann 1903 snail | |
"Lophospira gothlandica" = Loxoplocus gothlandicus
"Lophospira gothlandica" = Loxoplocus gothlandicus Ulrich and Scofield 1897 snail | |