Serratocrista Brunton, 1968
publication ID |
https://doi.org/ 10.4202/app.00972.2022 |
persistent identifier |
https://treatment.plazi.org/id/41708783-FFF7-FF9A-8F42-CEADFB86F914 |
treatment provided by |
Felipe |
scientific name |
Serratocrista Brunton, 1968 |
status |
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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.
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