Gressholmen (Ordovician of Norway)

Also known as Gressholmen, SP 3

Where: Norway (59.9° N, 10.7° E: paleocoordinates 29.3° S, 9.0° W)

• coordinate estimated from map

When: Dicellograptus anceps graptolite zone, Husbergøya Formation, Pirgu (449.5 - 445.2 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; shale

Size classes: macrofossils, mesofossils

Primary reference: P. J. Brenchley and L. R. M. Cocks. 1982. Ecological associations in a regressive sequence: the latest Ordovician of the Oslo-Asker district, Norway. Palaeontology 25(4):783-815 [S. Finnegan/S. Finnegan/B. Kröger]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 158962: authorized by Björn Kröger, entered by Björn Kröger on 23.07.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

 Sphaeronitida - Sphaeronitidae
Eucystis langoeyensis1 Bockelie 1984
Gastropoda
 Murchisoniina -
"Loxonematacea indet." = Loxonematoidea
"Loxonematacea indet." = Loxonematoidea Koken 1889 snail
Trilobita
 Corynexochida - Styginidae
Stygina latifrons3 Portlock 1843 trilobite
Stygina latifrons extensa
 Trinucleida - Trinucleidae
Tretaspis sortita2 Reed 1935 trilobite
Tretaspis sortita broeggeri
"Tretaspis broeggeri" = Tretaspis sortita broeggeri Stormer 1945 trilobite
 Phacopida - Encrinuridae
Cybeloides girvanensis3 Reed 1906 trilobite
Cybeloides (Paracybeloides) girvanensis