Faunal list for Llandeilo area, south Wales
This is an ongoing list of the described faunas of the Middle Ordovician in the Llandeilo area, covering approximately the same age range as seen in the Builth Inlier. It is not yet a complete list of the published taxa, but we aim to provide this eventually. References next to each heading give the source(s) of the various lists. So far, only the trilobites, graptolites and brachiopods are included, but there are more to come.
1. artus shales
2. Ffairfach Group
3. Llandeilo Flags (teretiusculus Biozone)
4. Llandeilo Flags (gracilis Biozone)
Trilobites (Kennedy 1989)
[2]Marrolithus primus Williams 1948
[2]Marrolithus inflatus incipiens Williams 1948
[2]Atractopyge michelli (Reed 1914)
[2]Flexicalymene cambriensis (Salter 1865)
[2]Metopolichas patriarchus (Wyatt-Edgell 1866)
Brachiopods (Lockley & Williams 1981)
[4]Apatobolus? micula (M’Coy 1851)
[3]Palaeoglossa attenuata (J. de C. Sowerby 1839)
[2,3,4?]Pseudolingula granulata (Phillips 1848)
[4]Plectoglossa? sp. (Lockley & Williams 1981)
[2]Paterula cf. bohemica Barrande 1879
[4]Paterula fissura Addison
[2,3,4]Schizocrania cf. salopiensis Williams 1974
[3]Schizotreta cf. transversa Williams 1974
[2]Schizotreta transversa ffairfachensis Lockley & Williams 1981
[2]Hesperorthis dynevorensis Williams 1949
[2]Glyptorthis viriosa tumida Lockley & Williams 1981
[3]Corineorthis pustula Williams 1949 [n.b. note cf pustula at Penddol!]
[2]Gelidorthis cennenensis Lockley & Williams 1981
[2]Skenidioides sp. (Lockley & Williams 1981)
[2]Dalmanella parva Williams 1949
[2]Horderleyella convexa Williams 1949
[2]Horderleyella sp. (Lockley & Williams 1949)
[1,2]Tissintia prototypa Williams 1949
[2]Tissintia immatura Williams 1949
[2]Tissintia plana Williams 1949
[2]Salopia turgida (M’Coy 1851)
[2]Kullervo sp. (Lockley & Williams 1981)
[2]Triplesia edgelliana (Davidson 1869)
[2]Oxoplacia cf. nantensis MacGregor 1961
[2,3]Sowerbyella antiqua Jones 1928
[2]Murinella sp. (Lockley & Williams 1981)
[2,3]Macrocoelia llandeiloensis (Davidson)
[2]Macrocoelia elongata Lockley & Williams 1981
[3]Parastrophinella parva Macgregor 1961
[3?]Parastrophinella cf. musculosa Williams 1974
[2]Rostriculella triangularis Williams 1949
36 spp total
