S of Craigbardahessiagh (Ordovician to of the United Kingdom)

Also known as Pomeroy inlier

Where: Northern Ireland, United Kingdom (54.6° N, 6.9° W: paleocoordinates 21.5° S, 30.1° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Bardahessiagh Formation, Rocklandian to Rocklandian (457.3 - 449.6 Ma)

• The fossils come from unknown positions within the Bardahessiagh Formation (always spelled "Bardahessaigh Formation" by Evans, 1993). According to fig. 2 in Evans (1993) the Bardahessiagh Fm. spans the Rocklandian and Kirkfieldian stages.

• formation-level stratigraphic resolution

Environment/lithology: coastal; fine-grained, micaceous, gray sandstone

• "The Bardahessaigh Formation was described by Mitchell (1977) as 'grey, fine-grained, micaceous sandstones and rarely corse conglomerates' [...]."

Size class: macrofossils

Preservation: cast

Collection methods: GSM = British Geological Survey

Primary reference: D. H. Evans. 1994. The Cephalopod Fauna of the Bardahessaigh Formation (Caradoc Series) of Pomeroy, County Tyrone. Irish Journal of Earth Sciences 13:11-29 [B. Kröger/T. Liebrecht/T. Liebrecht]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 89159: authorized by Björn Kröger, entered by Torsten Liebrecht on 07.05.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Orthocerida - Proteoceratidae
Gorbyoceras bilineatum
Gorbyoceras bilineatum
GSM 103508; figured as Orthoceras sub-annulare in Portlock (1843)