Abstract
The new suborder Timanodictyoidea is established to accommodate two new families - the Timanodictyidae and the Girtyporidae- of Permian cryptostomatous Bryozoa. Tirnanodictya Nikiforova and Timanotrypa Nikiforova, which have bilamellar zoaria, are assigned to the Timanodictyidae. Hayasakopora Sakagami and the new genera Girtypora (type species: G. ramosa, n. sp.) and Girtyporina (type species: G. applicata, n. sp.) are assigned to the family Girtyporidae, which includes dendroid and unilamellar forms in which the median plate is greatly reduced or lacking. In addition to the new type species, Timanodictya nikiforovae, n. sp. , Girtypora paula, n. sp. , and Hayasakopora gracilis, n. sp. , also are described from the Upper Permian of the USSR. Five species from the Guadalupian of Texas that Girty originally referred to Domopora? (terminalis, ocellata, constricta, vittata, and hillana) as well as Domopora? ambigua Reed from the Productus Limestone of the Salt Range are considered to be species of Girtypora. Guadalupian Domopora? incrustans Girty is placed in the new genus Girtyporina. --H. Duncan.

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