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Bimuria perrugata

Strophomenata - Strophomenida - Bimuriidae

Bimuria perrugata was named by Reed (1945). It is a 3D body fossil. Its type locality is Balclatchie Farm, Ayrshire, Girvan, which is in a Burrellian carbonate limestone in the Balclatchie Formation of the United Kingdom.

It was recombined as Christiania perrugata by Williams (1962) and Candela and Harper (2014).

Synonymy list
YearName and author
1945Bimuria perrugata Reed p. 313 figs. pl. I, figs, 1, 2, non fig. 3
1962Christiania perrugata Williams pp. 195 - 196 figs. Pl. XVIII, figs. 40--42; P1. XIX, fig. 1
2014Christiania perrugata Candela and Harper pp. Supplement 1

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phylumBrachiopodaCuvier 1805
subphylumRhynchonelliformeaWilliams et al. 1996
classStrophomenataWilliams et al 1996
orderStrophomenidaOpik 1934
superfamilyPlectambonitoideaJones 1928
familyBimuriidaeCooper 1956
genusBimuriaUlrich and Cooper 1942
speciesperrugataReed 1945

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

A. Williams 1962Elongate, parallel-sided Christiania, slightly longer than wide with a concavo-convex lateral profile, over two-fifths .as deep as long in adult shells, and an evenly convex, transverse profile with steeply sloping sides; ornamentation consisting solely of crowded, thickened, concentric growth-lines; ventral muscle-scar less than one-third of the length of the pedicle valve, dental lamellae short, narrowly divergent and masked by secondary shell deposit in adult shells; both pairs of dorsal septa long, high and straight, subparallel with the median ridge; adductor muscle-platforms well defined, almost two-fifths as long as the brachial valve and commonly contained anteriorly by a pair of high secondary ridges, convex anteriorly.