STREBLOTRYPA, Vine, 1885

Ernst, Andrej, Claussen, Anna Lene, Seuss, Barbara & Wyse Jackson, Patrick N., 2022, Stenolaemate bryozoans from the Graham Formation, Pennsylvanian (Virgilian) at Lost Creek Lake, Texas, USA, Palaeontologia Electronica (a 15) 25 (2), pp. 1-56 : 15

Subgenus STREBLOTRYPA ( STREBLOTRYPA ) Vine, 1885

Type species. Streblotrypa nicklesi Vine, 1885 , by original designation. Late Mississippian (Middle Carboniferous; Pendleian = Serpukhovian); Hurst, north Yorkshire, England .

Diagnosis. Ramose colonies with indistinct bundle of about 10 or fewer axial zooecia in the endozone. Autozooecia budding from axial bundle, having long inflated proximal parts, rounded-polygonal in transverse section in the endozone, bending abruptly at the transition between endo- and exozone. Autozooecial apertures rounded to oval. Diaphragms rare. Hemisepta usually present. Metazooecia usually restricted to rows between the autozooecial apertures; styles usually lacking but poorly developed acanthostyles sometimes occurring. Autozooecial walls laminated, without distinct autozooecial boundaries.

Remarks. Streblotrypa (Streblotrypa) Vine, 1885 , differs from S. (Streblascopora) Bassler, 1929, by an indistinctly defined axial bundle of axial zooecia and well-developed hemisepta.

Occurrence. Carboniferous to Permian; worldwide.