Norra udden trilobites (Ordovician of Sweden)

Where: Sweden (57.4° N, 17.1° E: paleocoordinates 38.2° S, 8.1° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Holen Formation, Kunda (468.1 - 463.5 Ma)

• Age and stratigraphy based on Nordlund 1989 (GFF 111:64-94) and Struresson 1986 (GFF 108:331-348).

Environment/lithology: marine; lithified, gray limestone

• purely gray limestone with scattered small grains of glauconite in some samples but mostly unglauconitic

Size class: macrofossils

Collected in 1944

Collection methods: surface (in situ),

Primary reference: B. Bohlin. 1949. The Asaphus Limestone in northernmost Ă–land. Bulletin of the Geological Institution of the University of Uppsala 33:529-570 [M. Hopkins/M. Hopkins]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 188214: authorized by Melanie Hopkins, entered by Melanie Hopkins on 25.08.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Corynexochida - Illaenidae
 Phacopida - Cheiruridae
? Cyrtometopus sp. Angelin 1854 trilobite
 Phacopida - Pliomeridae
 Asaphida - Asaphidae
"Megalaspis extenuata" = Megistaspis, Asaphus raniceps
"Megalaspis extenuata" = Megistaspis trilobite
Asaphus raniceps Dalman 1827 trilobite
 Asaphida - Remopleurididae
Remopleurides sp. Portlock 1843 trilobite
 Asaphida - Raphiophoridae
Ampyx nasutus trilobite
 Lichida - Lichidae
"Lichas celorrhin" = Metopolichas celorrhin
"Lichas celorrhin" = Metopolichas celorrhin Angelin 1854 trilobite