Lerkaka (Folkeslunda Limestone) (Ordovician of Sweden)

Also known as Öland, Oland

Where: Kalmar, Sweden (56.7° N, 16.7° E: paleocoordinates 37.4° S, 7.3° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Folkeslunda Limestone Formation, Lasnamagi (463.5 - 460.9 Ma)

• "Folkeslunda Limestone, Lasnamägi Regional Stage" (Kröger et al., 2009)

• formation-level stratigraphic resolution

Environment/lithology: shallow subtidal; phosphatic limestone

• informations on lithologty are from Mutvei (2002, Acta Palaeont. Polon. 47(1))

Size class: macrofossils

Preservation: replaced with phosphate

Primary reference: B. Kröger, Y. Zhang, and M. Isakar. 2009. Discosorids and Oncocerids (Cephalopoda) of the Middle Ordovician Kunda and Aseri Regional Stages of Baltoscandia and the early evolution of these groups. Geobios 42:273-293 [B. Kröger/T. Liebrecht/B. Kröger]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 89255: authorized by Björn Kröger, entered by Torsten Liebrecht on 12.05.2009, edited by Björn Kröger and Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

• "On Öland not only are nautiloid shells well preserved but also receptaculitid skeletons (Nitecki et al. 1999) and other fossils with aragonitic skeletons." (Mutvei 2002, Acta Palaeont. Polon. 47(1))
Gastropoda
 Euomphalina - Lesueurillidae
Eccyliopterus alatus1, "Lesueurilla declivis" = Eccyliopterus declivis1, "Raphistoma vaginati" = Pararaphistoma vaginati1
Eccyliopterus alatus1 Roemer 1876 snail
"Lesueurilla declivis" = Eccyliopterus declivis1 Remelé 1888 snail
"Raphistoma vaginati" = Pararaphistoma vaginati1 Koken and Perner 1925 snail
 Bellerophontida - Sinuitidae
Sinuites vetustus1 Koken 1897 snail
Cephalopoda
 Ellesmerocerida - Phthanoncoceratidae
"Phtanoncoceras ellipticum" = Phthanoncoceras ellipticum2
"Phtanoncoceras ellipticum" = Phthanoncoceras ellipticum2 Lossen 1860
NRM–PZ Mo 160695
 Oncocerida - Oncoceratidae
Richardsonoceras gerhardi Kröger et al. 2009
NRM-PZ Mo 14114