Gorjunopora, Ernst & Wyse Jackson & Aretz, 2015

Ernst, Andrej, Wyse Jackson, Patrick N. & Aretz, Markus, 2015, Bryozoan fauna from the Mississippian (Visean) of Roque Redonde (Montagne Noire, southern France), Geodiversitas 37 (2), pp. 151-213 : 196

Genus Gorjunopora n. gen.

TYPE SPECIES. — Gorjunopora gallica n. sp. Carboniferous , Mississippian, upper Visean ; Roque Redonde (Montagne Noire, southern France).

ETYMOLOGY. — The genus is named in honour of the Russian bryozoologist Raisa Gorjunova whose extensive research has increased our knowledge of Palaeozoic bryozoans.

DIAGNOSIS. — Colonies consisting of straight main branches with frequent lateral branches; two rows of autozooecia both on main and lateral branches; autozooecia triangular to trapezoid in mid tangential section; long superior hemisepta present; internal curved hemisepta in middle part of chambers present; superstructure absent; keel low with one row of weakly alternating nodes.

OCCURRENCE. — Gorjunopora gallica n. gen., n. sp. from the Carboniferous, Mississippian (Visean) of France (present paper), and G. triangulata (Schulga-Nesterenko, 1955) from the Visean of the Russian Platform.

COMPARISON

Gorjunopora n. gen. differs from Filites Počta in Barrande, 1894 in presence of long superior and internal hemisepta as well as in alternating nodes on low keel. Gorjunopora n. gen. differs from Penniretepora d’Orbigny, 1849 in the shape of autozooecial chambers (triangular to trapezoid vs rectangular to pentagonal in Penniretepora ), presence of long superior and internal hemisepta as well as in alternating nodes on low keel