Finngrundet drill core 55.45 m (Ordovician of Sweden)

Where: Sweden (61.0° N, 18.6° E: paleocoordinates 36.1° S, 7.3° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Megistaspis (Megistaspis) lata trilobite zone, Volkhov (471.1 - 469.2 Ma)

• Trilobite zone correlative with the Didymograptus hirundo, early form, and the early (pre-Langovoja) Volkhovian Stage (Baltoscandia).

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, red, muddy limestone

• red clayey limestone

Size classes: macrofossils, mesofossils

Collection methods: core, mechanical,

Primary reference: T. E. Tjernvik and J. V. Johansson. 1980. Description of the upper portion of the drill-core from Finngrundet in the South Bothnian Bay. Bulletin of the Geological Institutions of the University of Uppsala 8:173-204 [M. Hopkins/M. Hopkins]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 198147: authorized by Melanie Hopkins, entered by Melanie Hopkins on 08.12.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Asaphida - Asaphidae
 Asaphida - Nileidae
Nileus exarmatus Tjernvik 1956 trilobite