Haverfordwest 7126-7127-7132-7148 (Silurian to of the United Kingdom)

Where: Wales, United Kingdom (51.8° N, 5.0° W: paleocoordinates 35.8° S, 17.9° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Gasworks Mudstone Member, Rhuddanian to Rhuddanian (443.4 - 438.5 Ma)

• "[These four localities] are in the topmost 25 m of the Gasworks Mudstone." Rhuddanian - Aeronian inferred due to the statement that this age is "pre-Upper Llandovery, in that it is not yet possible...to distinguish the Lower from the Middle Llandovery (Rhuddanian and Idwian) [in this area]."

• group of beds-level stratigraphic resolution

Environment/lithology: marine

• Absolutely no litho info given.

Collection methods: Collections lumped together; individual localities listed in comment field where applicable.

Primary reference: J. T. Temple. 1975. Early Llandovery trilobites from Wales with notes on British Llandovery Calymenids. Palaeontology 18(1):137-159 [J. Alroy/M. Sommers/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 3502: authorized by John Alroy, entered by Mike Sommers on 03.08.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

• "Trilobites form a numerically insubstantial part of Welsh early Llandovery shelly faunas [<2.6% of brachs]."
Show authors, comments, and common names
Trilobita
 Odontopleurida - Odontopleuridae
Odontopleurinae indet.
Odontopleurinae indet. Burmeister 1843 trilobite
7132
 Corynexochida - Illaenidae
Stenopareia sp.
Stenopareia sp. Holm 1886 trilobite
7126
 Phacopida - Calymenidae
"Calymene crassa" = Dekalymene crassa, Calymene sp.
"Calymene crassa" = Dekalymene crassa Shirley 1936 trilobite
7126
Calymene sp. Brongniart 1822 trilobite
"sp. A"; 7132, 7148
 Phacopida - Dalmanitidae
Dalmanites sp.
Dalmanites sp. Barrande 1852 trilobite
7126