Upper Visby community, Visby Fm. (Silurian of Sweden)
Where: Sweden (57.5° N, 18.6° E: paleocoordinates 21.6° S, 2.8° W)
• coordinate based on political unit
When: Upper Visby Formation, Sheinwoodian (433.4 - 430.5 Ma)
• "lower Wenlock"
• formation-level stratigraphic resolution
Environment/lithology: marine; lime mudstone
• "fine grained carbonate mud- mainly skeletal ls. two assoc. appear to be a mixture of Clorinda and Stricklandia benthic assemblages."
Size class: macrofossils
Primary reference: J. M. Hurst. 1975. Some observations on brachs and the level-bottom community ecology of Gotland. Geol. Fo:reningens i Stockholm Fo:rhandlinger 97:250-264 [P. Wagner/P. Wagner]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 476: authorized by Arnold Miller, entered by Mike Sommers on 15.12.1998, edited by Mihaela Krause
Creative Commons license: CC BY (attribution)
Taxonomic list
• "Hurst, 1975"
Show authors, comments, and common names
unclassified | |
| |
Tentaculita | |
| |
Cephalopoda | |
| |
Gastropoda | |
Poleumita sp. Clarke and Ruedemann 1903 snail | |
Rhynchonellata | |
Sphaerirhynchia sp. Cooper and Muir-Wood 1951 | |
Ferganella sp. Nikiforova 1937 | |
Cyrtia sp. Dalman 1828 | |
Atrypa sp. Dalman 1828 | |
Spirigerina sp. d'Orbigny 1849 | |
Dicoelosia sp. King 1850 | |
Isorthis sp. Kozlowski 1929
Visbyella sp. Walmsley et al. 1968 | |
Skenidioides sp. Schuchert and Cooper 1931 | |
Strophomenata | |
Leptaena sp., Leptaena rhomboidalis, "Leptaena depressa" = Leptaena (Leptaena) depressa, Leptaena sperion
Leptaena rhomboidalis Wahlenberg 1818
"Leptaena depressa" = Leptaena (Leptaena) depressa Sowerby 1824
Leptaena sperion Bassett 1977 | |
Megastrophia sp. Caster 1939 | |
Eoplectodonta sp. Kozlowski 1929 | |
"Coolinia sp." = Fardenia (Coolinia)
"Coolinia sp." = Fardenia (Coolinia) Bancroft 1949 | |
Stenolaemata | |
| |
Anthozoa | |
| |
Halysites sp. von Waldheim 1813 tabulate coral |