Timanotrypa, Nikiforova, 1938

Ernst, Andrej, 2016, Bryozoan fauna from the Permian (Artinskian-Kungurian) Zhongba Formation of southwestern Tibet, Palaeontologia Electronica (1946) 51 (9), pp. 1-59 : 35

Genus TIMANOTRYPA Nikiforova, 1938

Type species. Timanotrypa foliata Nikiforova, 1938 . Lower Permian , Sakmarian ; Russia.

Diagnosis. Bifoliate, frondose, leaf-shaped colonies. Branched colonies; branches bifoliate, lenticular, rounded or oval in transverse section. Autozooecia tubular, widened proximally and bending at low angles in exozone. Mesotheca straight or zigzag folded. Median tubules absent. Autozooecial diaphragms rare. Exozonal walls laminated, traversed by abundant microstyles. Maculae lacking autozooecia present. Heterozooecia absent.

Remarks. Timanotrypa Nikiforova, 1938 differs from Timanodictya Nikiforova, 1938 in having frondose or leaf-shaped colonies instead of branched ones.

Occurrence. Lower Permian of Arctic, Tibet and Australia, Upper Permian (Kazanian) of the Russian Plate.