Gulhogen Formation, Bed: 22.29-24.77 (Ordovician of Sweden)

Where: Vastergotland, Sweden (58.0° N, 12.0° E: paleocoordinates 34.5° S, 9.4° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Gullhögen Formation, Llandeilo (461.1 - 458.4 Ma)

• Listed Lower Llandeilo, local series:L-Uhakuan

• formation-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; lithified, calcareous mudstone and fine-grained, bentonitic limestone

• Grayish green (calcareous?) mudstone with inclusions and irregular beds of fine-grained, gray to pale brown limestone and a few distal bentonite (biotite-rich) layers

Size classes: macrofossils, mesofossils

Primary reference: V. Jaanusson. 1965. The Viruan (Middle Ordovician) of Kinnekulle and northern Billingen, Vastergotland. Bulletin of Geological Institutions of the University of Uppsala 43(1):1-73 [A. Miller/P. Novack-Gottshall/A. Clement]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 77097: authorized by Phil Novack-Gottshall, entered by Paul Hearn on 20.12.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

Pterobranchia
 Graptoloidea - Diplograptidae
"Glyptograptus cf. teretiusculus" = Hustedograptus teretiusculus
"Glyptograptus cf. teretiusculus" = Hustedograptus teretiusculus Hisinger 1840 graptolite
Paragastropoda
 Mimospirida - Clisospiridae
Clisospira sp. Billings 1865
Ostracoda
 Hollinocopida - Tetradellidae
Sigmobolbina sp. Henningsmoen 1953 ostracod
 Hollinocopida - Eurychilinidae
Laccochilina (Laccochilina) sp. Hessland 1949 ostracod
 Beyrichicopida - Ctenonotellidae
Steusloffia linnarssoni Krause 1889 ostracod
  - Sigmoopsidae
Trilobita
 Corynexochida - Styginidae
Bronteopsis sp. Nicholson and Etheridge 1879 trilobite
 Trinucleida - Trinucleidae
 Asaphida - Nileidae
Nileus sp. Dalman 1827 trilobite
 Asaphida - Remopleurididae
Remopleurides sp. Portlock 1843 trilobite