Llanvirn-y-frân Farm (Ordovician of the United Kingdom)

Also known as locality 2; Llanvirn y fran, Llanfryn

Where: Wales, United Kingdom (51.9° N, 5.2° W: paleocoordinates 58.7° S, 21.0° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Didymograptus artus graptolite zone, Aber Mawr Shale Formation, Abereiddian (468.0 - 461.1 Ma)

• "Aber Mawr Shale Formation, Abereiddian Stage, Llanvirn Series, artus Biozone." (Evans, 2005)

• group of beds-level stratigraphic resolution

Environment/lithology: offshore; shale

Size class: macrofossils

Preservation: cast

Reposited in the BGS, SM

Primary reference: D. H. Evans. 2005. The Lower and Middle Ordovician cephalopod faunas of England and Wales. Monograph of the Palaeontographical Society 623:1-81 [B. Kröger/B. Kröger/B. Kröger]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 89451: authorized by Björn Kröger, entered by Torsten Liebrecht on 20.05.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Orthocerida - Orthoceratidae
"Michelinoceras avelinii" = Michelinoceras avelinii, "Orthoceras caereesiense n. sp." = Michelinoceras avelinii
"Michelinoceras avelinii" = Michelinoceras avelinii Salter 1854
SM A.44479 to A.44481
"Orthoceras caereesiense n. sp." = Michelinoceras avelinii Salter 1854
SM A.16704, A.16705; BGS GSM 104063 (all are syntypes; figured in Hicks, 1875)