Spirodden, 80 meters above base of Myren Member (Silurian of Norway)

Where: Asker, Norway (59.8° N, 10.5° E: paleocoordinates 26.8° S, 8.9° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Myren Member (Solvik Formation), Rhuddanian (443.4 - 440.8 Ma)

• member-level stratigraphic resolution

Environment/lithology: marine; mudstone and calcareous siltstone

• "Occurrenced of ball and pillow and otherwise contorted bedding in very thin siltstone beds indicates that the bottom might sometimes have been soupy...transport considered to be of little importance...Silt interbeds with erosive bases are very rare, and a position below wave base is indicated. the comm. occurs in an upwardly shallowing sequence...[it] is assigned to a BA 5 position, extending somewhat into BA 4."
• "This comm. occurs in strongly mudstone dominated facies with minor calcareous siltstones or silty limestones."

Size classes: macrofossils, mesofossils

Primary reference: B. G. Baarli and D. A. T. Harper. 1986. Relict Ordovician brachiopod faunas in the Lower Silurian of Asker, Oslo Region, Norway. Norsk Geologisk Tidsskrift 66:87-98 [B. Kröger/B. Kröger]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 191034: authorized by Björn Kröger, entered by Björn Kröger on 04.01.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

 Strophomenida - Sowerbyellidae
"Eoplectodonta duplicata" = Eoplectodonta (Eoplectodonta) duplicata
"Eoplectodonta duplicata" = Eoplectodonta (Eoplectodonta) duplicata de Sowerby and Murchison 1839
 Strophomenida - Leptestiidae
Leangella scissa Davidson 1871
 Pentamerida - Stricklandiidae
Stricklandia lens Sowerby 1839
 Protorthida - Skenidiidae
 Atrypida - Atrypidae
Protatrypa malmoeyensis Boucot et al. 1964
 Orthida - Dalmanellidae
"Isorthis prima" = Levenea llandoveriana
"Isorthis prima" = Levenea llandoveriana Williams 1951
 Orthida - Hesperorthidae
Dolerorthis plicata de Sowerby and Murchison 1839