Fossils of Spangande Limestone at Stora Karlso (Silurian of Sweden)

Where: Gotland, Sweden (57.6° N, 18.3° E: paleocoordinates 21.6° S, 3.0° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Spangande Limestone Formation, Sheinwoodian (433.4 - 430.5 Ma)

• Manten believes this unit to correlate with Slite IV beds on Gotland.

• group of beds-level stratigraphic resolution

Environment/lithology: open shallow subtidal; lithified, gray, blue limestone

• SEP environmental call based on given info.
• ...stratified crystalline limestone, surrounding the major reefs of the island and consequently very fossiliferous...The colour of the rock is generally bluish grey to red-mottled. The some extent there is a direct relationship between the thickness of the layers and the purity of the limestone of which they consist. (Manten 1971, p. 230)

Primary reference: A. A. Manten. 1971. Silurian Reefs of Gotland. Developments in Sedimentology 13:1-539 [M. Foote/M. Foote/P. Wagner]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 13670: authorized by Michael Foote, entered by Michael Foote on 17.04.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

 Corynexochida - Styginidae
 Strophomenida - Sowerbyellidae
"Plectodonta transversalis" = Eoplectodonta (Eoplectodonta) transversalis
"Plectodonta transversalis" = Eoplectodonta (Eoplectodonta) transversalis Wahlenberg 1818
 Strophomenida - Rafinesquinidae
Leptaena rhomboidalis Wahlenberg 1818
 Terebratulida - Megathyrididae
"Rhynchotreta cuneata" = Argyrotheca cuneata
"Rhynchotreta cuneata" = Argyrotheca cuneata Dalman 1828
 Pentamerida - Clorindidae
 Pentamerida - Subrianidae
 Pentamerida - Pentameridae
 Atrypida - Atrypidae
Plectatrypa imbricata Sowerby and Murchison 1839
Atrypa reticularis Linnaeus 1758
 Atrypida - Lissatrypidae
"Glassia obovata" = Lissatrypa obovata
"Glassia obovata" = Lissatrypa obovata Sowerby 1839
 Rhynchonellida - Rhynchotrematidae
"Camarotoechia borealis" = Stegerhynchus borealis
"Camarotoechia borealis" = Stegerhynchus borealis Buch 1834
 Orthida - Dicoelosiidae
Dicoelosia biloba Linnaeus 1758
 Orthida - Hesperorthidae
 Euomphalina - Platyceratidae
"Platyceras cornutum" = Platyostoma cornutum
"Platyceras cornutum" = Platyostoma cornutum Hisinger 1837 snail
Bryozoa indet. Ehrenberg 1831
Crinoidea indet. Miller 1821 Sea lily
 Stromatoporoidea -
Anthozoa indet. Ehrenberg 1834
 Favositida - Favositidae
Favosites gotlandicus tabulate coral
 Heliolitida - Halysitidae
Halysites catenularis tabulate coral
 Heliolitida - Heliolitidae
 Cystiphyllida - Cystiphyllidae
 Cystiphyllida - Goniophyllidae
 Stauriida - Laccophyllidae
 Stauriida - Acervulariidae