. Bulletin of the British Museum (Natural History). 14 M. G. LOCKLEY & A. WILLIAMS in old quarry 75 m SE of St Tyfei's Church (SN 622222); SM from an unknown locaHty in the 'Llandeilo Beds' of the Llandeiio area and from an unknown horizon in the Ffairfach railway cutting south of the station; SM from Lower Llanvim shales exposed in Camnant Brook near The Court Farm 7 km NE of Builth (SO 088576). Discussion. When Williams (1974:36) erected the species spatula for a distinctive Pseitdolingiila occurring sporadically throughout the Lower Ordovician successions of the
. Bulletin of the British Museum (Natural History). 14 M. G. LOCKLEY & A. WILLIAMS in old quarry 75 m SE of St Tyfei's Church (SN 622222); SM from an unknown locaHty in the 'Llandeilo Beds' of the Llandeiio area and from an unknown horizon in the Ffairfach railway cutting south of the station; SM from Lower Llanvim shales exposed in Camnant Brook near The Court Farm 7 km NE of Builth (SO 088576). Discussion. When Williams (1974:36) erected the species spatula for a distinctive Pseitdolingiila occurring sporadically throughout the Lower Ordovician successions of the Shelve area, he overlooked the long-established but little-known Lingula granulata Phillips. This taxon was effectively founded on one brachial valve from the 'Llandeilo Limestone" of Dynevor Park in the type area, but there is no doubt that the species is a Pseudolingula. Moreover recent collecting throughout the Ffairfach Group and the Llandeilo Series in the type area yielded a sufficient number of valves assignable to P. granulata to provide some. Figs 22-29 Pseudolingula granulata (Phillips). Fig. 22, holotype GSM 8460, exfoliated brachial valve x2, from Lower Llandeilo limestones, Dynevor Park, Llandeilo. Fig. 23, BB92269, exfoliated pedicle valve x4; Figs 24a, b, BB 92270, internal and external parts of exfoliated pedicle valve x4; both from Middle Llandeilo Flags, Dynevor Park, Llandeilo. Fig. 25, SM , exfoliated brachial valve x 2, from Llandeilo Limestones, Llandeilo. Fig. 26, BB 92271, internal part of an exfoliated brachial valve x 2, Lower Llandeilo, Dynevor Park. Fig. 27, BB 92285a, internal part of an exfoliated brachial valve, x 2; Fig. 28, BB 92284, external part of exfoliated matching valves (view of dorsal valve) x 4; both from Flags and Grits, Ffairfach Group, type section. Fig. 29, SM A. 104417, latex impression of an exfoliated brachial valve x2, from Llanvirn shales, Camnant Brook, Builth. Fig. 30 ? Plecioglossa sp. B 3474, latex cast of an e
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