Rortunet, Slemmestad (Ordovician to of Norway)

Where: Oslo-Asker", Norway (59.8° N, 10.5° E: paleocoordinates 37.1° S, 14.3° W)

• coordinate estimated from map

When: Megistaspis (Ekeraspis) armata trilobite zone, Hagastrand Member (Tøyen Formation), Tremadocian to Tremadocian (485.4 - 470.0 Ma)

• member-level stratigraphic resolution

Environment/lithology: limestone

Size classes: macrofossils, mesofossils

Primary reference: O. A. Hoel. 1999. Trilobites of the Hagastrand Member (Tøyen Formation, lowermost Arenig) from tbe Oslo Region, Norway, Part Il : Remaining non-asaphid groups. Norsk Geologisk Tidsskrift 79:259-280 [B. Kröger/B. Kröger]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 190980: authorized by Björn Kröger, entered by Björn Kröger on 02.01.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

 Asaphida - Asaphidae
Megistaspis (Ekeraspis) armata Tjernvik 1956 trilobite
 Graptoloida - Anisograptidae
 Tetragrapta -
Tetragraptus phyllograptoides Strandmark 1902 graptoloid