700m NNE of Ballymoney Strand (Ordovician of Ireland)

Also known as locality 7 (Brenchley & Treagus, 1970)

Where: Leinster, Ireland (52.7° N, 6.2° W: paleocoordinates 53.2° S, 21.3° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Courtown Formation, Llandeilo (461.1 - 458.4 Ma)

• "Horizon close to the base of the Courtown Formation, considered to be low in the Caradoc Series (Brenchley & Treagus, 1970). The Base of the Courtown Fm. is still in the Llandeilian according to fig. 2 in Evans (2002, Spec. Papers Paleont. 67).

• bed-level stratigraphic resolution

Environment/lithology: marginal marine; coarse-grained sandstone

• The presence of coarse clastics suggests that the deposits represent a nearshore environment.
• see comments on taphonomy

Size class: macrofossils

Preservation: cast

Collection methods: GSI = Geological Survey of Ireland

Primary reference: D. H. Evans. 1994. Siphonal and cameral deposits in Allumettoceras and the position of the Tripteroceratidae (Nautiloidea). Palaeontologische Zeitschrift 68(3/4):321-337 [B. Kröger/T. Liebrecht]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 89284: authorized by Björn Kröger, entered by Torsten Liebrecht on 13.05.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Orthocerida - Tripteroceratidae
Allumettoceras courtownense n. sp.
Allumettoceras courtownense n. sp. Evans 1994
GSI F080103 (type)