H43 (Silurian of the United Kingdom)

Where: Wales, United Kingdom (51.8° N, 5.0° W)

• Paleocoordinates: 32.2° S, 67.7° W (Wright 2013)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: atavus - acinaces zone, Rhuddanian (443.4 - 440.8 Ma)

• Unless a conodont zone was explicitly stated, a Late Rhudd - Late Aeron age was entered because of the statement these beds are all "pre-sedgwickii Zone."

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified mudstone and sandstone

Collection methods: bulk,

• "... a single collection (from bulk material) [was made] from each locality, identifying and recording all fossils encountered during break up of the rock... [sacrificing commoner taxa in continued searching, or preserving rarer specimens and not breaking the rock further]...figures obtained for relative frequencies of the taxa are prob accurate...estimates of volumetric abundance...are prob too low." Sample: 200 mm, 7.6 kg.

Primary reference: J. T. Temple. 1987. Early Llandovery brachiopods of Wales. Palaeontological Society Monographs 139(572):1-137 [J. Alroy/M. Sommers/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 5062: authorized by John Alroy, entered by Mike Sommers on 26.08.1999

Creative Commons license: CC0 (CC0)

Taxonomic list

• "Brachiopods... form the overwhelming preponderance of early Llandovery shelly faunas in Wales."
Stricklandia lens
  -
Stricklandia lens Sowerby 1839
ssp. mullochensis
Craniata
 Craniopsida - Craniopsidae
Paracraniops sp. Williams 1963
Rhynchonellata
 Rhynchonellida - Rhynchotrematidae
Stegerhynchus pusillum de Sowerby and Murchison 1839
 Orthida - Rhipidomellidae
Mendacella mullockiensis Davidson 1869
"llandoveriana morph"
Strophomenata
 Strophomenida - Leptestiidae
Leangella scissa Davidson 1871
 Strophomenida - Sowerbyellidae
"Eoplectodonta duplicata" = Eoplectodonta (Eoplectodonta) duplicata
"Eoplectodonta duplicata" = Eoplectodonta (Eoplectodonta) duplicata de Sowerby and Murchison 1839