Myrddyn Marad, near Bala (Ordovician of the United Kingdom)

Also known as Murddyn Marad; type locality of Orthoceras pictum Blake

Where: Wales, United Kingdom (52.9° N, 3.6° W: paleocoordinates 52.3° S, 18.5° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Cymerig Limestone Formation, Longvillian (457.5 - 455.8 Ma)

• "The matrix appears to be Cymerig Limestone and it is therefore Longvillian in age" (Evans, 2002).

• bed-level stratigraphic resolution

Environment/lithology: shallow subtidal; limestone

• Ramsay (1866, Mem. Geol. Surv. Great Britain 3, p. 85) states that "the whole [i.e., the rocks at Murddyn Marad] has a shallow water aspect".

Size class: macrofossils

Primary reference: D. H. Evans. 2002. Some Additional Ordovician and Silurian Cephalopods from Ireland. In P. N. Wyse Jackson, M. A. Parkes and R. Wood (eds.), Studies in Palaeozoic palaeontology and biostratigraphy in honour of Charles Hepworth Holland. Special Papers in Paleontology 67:77-96 [B. Kröger/T. Liebrecht]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 89145: authorized by Björn Kröger, entered by Torsten Liebrecht on 06.05.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

 Orthocerida - Orthoceratidae
Orthoceras pictum n. sp.
no repository data given