Serratocrista Brunton, 1968

Carniti, Alessandro P., Porta, Giovanna Della, Banks, Vanessa J., Stephenson, Michael H. & Angiolini, Lucia, 2022, Brachiopod fauna from uppermost Visean (Mississippian) mud mounds in Derbyshire, UK, Acta Palaeontologica Polonica 67 (4), pp. 865-915 : 897

Genus Serratocrista Brunton, 1968

Type species: Serratocrista fistulosa Brunton, 1968 , from the Asbian , upper Visean, of County Fermanagh, Ireland .

Remarks.—The genus was established by Brunton (1968) to include orthotetidines similar to Schuchertella Thomas, 1910 , but lacking a median dorsal septum (though Serratocrista cylindricosta McIntosh, 1974 , has a faint one). Serratocrista also differs from Schuchertella in having a vestigial chilidium, faint muscle scars and in lacking a myophragm.

The genus differs from Streptorhynchus King, 1850 , of the Streptorhynchinae Stehli, 1954, in lacking a dorsal median septum, in having socket ridges diverging at a low angle from the cardinal margin, instead of diverging at a high angle, and in having a low, broad ventral interarea, rather than a high, narrow one.