. Bulletin of the British Museum (Natural History). 122 L. R. M. COCKS & M. G. LOCKLEY Family LINOPORELLIDAE Schuchert & Cooper, 1931 Genus 5'^LO/'/^ Williams, 1955 Salopia ?pulvinata (Salter, 1864) (Figs 32-35) 1864 Onhispidvinata Salter : 294; pi. 17, fig. 8. 1870 0«/!w/)!(/vmaM Salter; Davidson: 83 paw; pi. 5, figs 17, 19,? fig. 18. 1881a Ort/j»pi//vi«a;a Salter; Davidson: 357; pi. 41, figs 10, 11. 1978 Pionodema 1 pidvinata (Salter) Cocks : 80. Description. Large, transverse linoporellid with brachial valve averaging 71% as long as wide (range 71-72%), and between 19 and 26% as dee
. Bulletin of the British Museum (Natural History). 122 L. R. M. COCKS & M. G. LOCKLEY Family LINOPORELLIDAE Schuchert & Cooper, 1931 Genus 5'^LO/'/^ Williams, 1955 Salopia ?pulvinata (Salter, 1864) (Figs 32-35) 1864 Onhispidvinata Salter : 294; pi. 17, fig. 8. 1870 0«/!w/)!(/vmaM Salter; Davidson: 83 paw; pi. 5, figs 17, 19,? fig. 18. 1881a Ort/j»pi//vi«a;a Salter; Davidson: 357; pi. 41, figs 10, 11. 1978 Pionodema 1 pidvinata (Salter) Cocks : 80. Description. Large, transverse linoporellid with brachial valve averaging 71% as long as wide (range 71-72%), and between 19 and 26% as deep as long in 3 valves. Dorsal interarea short, flat, anacline, with wide open notothyrium. Ornament poorly known, consisting of faint fine radial costellae. Cardinal process simple, blade-like, consisting of anteriorly widening shaft merging with notothyrial platform. Brachiophores short, with convergent bases extending forward for about one-fifth to one-quarter valve length; sockets narrow, with small curved fulcral plates. Dorsal adductor scars elongate and quadripartite, averaging 49% as long as valve (range 47-52%) in three valves, with anterior pair of scars larger than posterior pair. The muscle field is divided by a broad median septum. Pedicle valve Figs 32-35 Salopia ? pidvinala (Salter, 1864) from late Llandeilo pebbles in Trias, Budleigh Salterton, Devon. Fig. 32, B 21523, internal mould of a brachial valve, lectotype (sel. Cocks 1978:80), originally figured by Salter (1864: pi. 17, fig. 8),xl-5. Figs 33. 34, BE 70910, internal mould of a brachial valve and latex cast of it, x2-5; W. Vicary Coll. Fig. 35, B 13051, internal mould of a brachial valve, x 25; T. Davidson Coll. ex Winwood. Material. Lectotype B 21523 (sel. Cocks 1978 : 80), the part and counterpart of a brachial valve (Fig. 32), figured Salter (1864: pi. 17, fig. 8); from Ordovician pebble in Trias, Budleigh Salterton, Devon. Other material: two other brachial valves, B 13051 and BB 70940, bo
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