Near Stora Myre, Martebo (Silurian of Sweden)

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: Kockelella walliseri conodont zone, Conchidium tenuistriatum Member (Slite Formation), Sheinwoodian (433.4 - 430.5 Ma)

• Slite C in Lindström; given area and lithology, this should be in the Conchidium tenuistriatum beds of the Slite.

•This is the middle Kockelella walliseri zone.

• group of beds-level stratigraphic resolution

Environment/lithology: lithified limestone

• Lindström 1884: Yellowish soft 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 155697: authorized by Pete Wagner, entered by Pete Wagner on 24.04.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

Polychaeta
 Eunicemorpha -
Gastropoda
 Trochonematoidea - Trochonematidae
"Trochonema turritum" = Globonema turritum
"Trochonema turritum" = Globonema turritum Lindström 1884 snail
 Trochonematoidea - Lophospiridae
"Lophospira gothlandica" = Loxoplocus gothlandicus2
"Lophospira gothlandica" = Loxoplocus gothlandicus2 Ulrich and Scofield 1897 snail
 Euomphalina - Euomphalidae
"Oriostoma discors" = Poleumita discors, Poleumita rugosa3
"Oriostoma discors" = Poleumita discors Sowerby 1814 snail
Includes Oriostoma discors rugosum
Poleumita rugosa3 Sowerby 1814 snail
Oriostoma discors var. rugosum
 Euomphalina - Anomphalidae
Pycnomphalus acutus Lindström 1884 snail
 Euomphalina - Holopeidae
"Euomphalus gotlandicus" = Pachystrophia gotlandicus
"Euomphalus gotlandicus" = Pachystrophia gotlandicus Lindström 1884 snail
 Bellerophontida - Bellerophontidae
"Bellerophon sphaera" = Prosoptychus sphaera
"Bellerophon sphaera" = Prosoptychus sphaera Lindström 1884 snail
 Bellerophontida - Bucaniidae
"Tremanotus longitudinalis" = Boiotremus longitudinalis
"Tremanotus longitudinalis" = Boiotremus longitudinalis Lindström 1884 snail
 Bellerophontida - Tropidodiscidae
Temnodiscus arrosus n. sp. Lindström 1884 snail
 Murchisoniina - Murchisoniidae
"Murchisonia cava" = Cyrtostropha cava, "Murchisonia subplicata" = Cyrtostropha subplicata
"Murchisonia cava" = Cyrtostropha cava Lindström 1884 snail
"Murchisonia subplicata" = Cyrtostropha subplicata Lindström 1884 snail
 Murchisoniina - Subulitidae
Subulites attenuatus Lindström 1884 snail