Llandeilo Coarse Sandstone facies, Llandeilo, Wales, UK (Ordovician of the United Kingdom)

Where: Wales, United Kingdom (52.0° N, 4.0° W: paleocoordinates 58.8° S, 19.6° W)

• local area-level geographic resolution

When: Early/Lower Llandeilo (466.0 - 460.9 Ma)

• Basal sands and calcareous sands of Type Llandeilo; facies analysis, therefore, overrides precise formation definitions, orten including asseblage of formations with similar facies

Environment/lithology: shoreface; lithified, silty sandstone and conglomerate

• Medium to thick-bedded coarse sandstone and fine-grained conglomerate, cross-laminated accumulation of shell debris (event beds?), alternating with thin-bedded, laminated sandstone and siltstone with slight bioturbation; marine shoreface/intertidal/shallow subtidal assemblage

Size class: macrofossils

Primary reference: C. J. Wilcox and M. G. Lockley. 1981. A reassessment of facies and faunas the type Llandeilo (Ordovician), Wales. Palaeogeography, Palaeoclimatology, Palaeoecology 34(3-4):285-314 [A. Miller/P. Novack-Gottshall]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 3367: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 31.07.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Trilobita
 Asaphida - Asaphidae
Basilicus sp.
Basilicus sp. Salter 1849 trilobite
 Phacopida - Calymenidae
Flexicalymene sp.
Flexicalymene sp. Shirley 1936 trilobite
Strophomenata
 Strophomenida - Rafinesquinidae
"Macrocoelia sp." = Colaptomena
"Macrocoelia sp." = Colaptomena Cooper 1956
 Strophomenida - Sowerbyellidae
Sowerbyella sp.
Sowerbyella sp. Jones 1928
Rhynchonellata
 Orthida - Dalmanellidae
Dalmanella sp.
Dalmanella sp. Hall and Clarke 1892
 Orthida - Heterorthidae
Tissintia sp.