Mackinneyella MOROZOVA & LISITSYN, 1996

Ernst, Andrej, Tolokonnikova, Zoya & Yarahmadzahi, Hamed, 2012, Upper Devonian (Frasnian) Bryozoa from the Shishtu 1 Formation of Niaz area (eastern Tabas, central Iran), Revue de Paléobiologie 31 (1), pp. 1-14 : 5

Genus Mackinneyella MOROZOVA & LISITSYN, 1996

Type species: Polypora ornamentata SHULGA- NESTERENKO, 1941, by subsequent designation by MOROZOVA & LISITSYN (1996). Lower Permian , Southern Urals ( Russia) .

Diagnosis: Reticulated colonies of various shape consisting of broad linear, essentially parallel branches joined by dissepiments; dissepiments narrow, perpendicular or at oblique angle to branches, regularly spaced at large distance; fenestrules elongate oval, sub-rectangular, or irregular in shape; keels and superstructure absent; autozooecia arranged in 5-6 rows on branches; chambers slightly elongate, proximally recumbent on budding plate, rhomboidal or rounded hexagonal in mid tangential section, long axis parallel with branch axis; hemisepta and diaphragms absent; granular skeleton present in basal plate and axial wall but locally absent in transverse and lateral autozooecial walls; extrazooecial ske- leton laminated, traversed by abundant, moderate-size microstyles.

Remarks: Mackinneyella MOROZOVA & LISITSYN, 1996 differs from Polypora M’COY, 1844 in having 5-6 autozooecial rows on branches instead of 3-4 and shape of autozooecia in mid tangential section: rhombic vs. hexagonal.

Stratigraphic and geographic range: Upper Devonian - Upper Permian; worldwide.