Bryozoa of the Mission Argillite (Permian), northeastern Washington

Fifteen species of Late Permian bryozoans occur in a biohermal bank in the Mission Argillite of northeastern Washington. These include two species con specific with species described from Japan and 13 new species, one of which is the type species of a new genus. The presence of two species, Dyscritel la iwaizakiensis Sakagami, 1961, and Hayasakapora cf. erectoradiata Sakagam i, 1960, previously reported from Japan, and the similarity of new species with those previously described from Japan, China and Russia supports the i dea that these rocks were originally deposited in the southeastern or centr al western Pacific Ocean and subsequently accreted to the North American Pl ate. Bryozoans and previously reported fusulinids indicate that the biohermal ba nk is latest Wordian (Kazanian). Newly described bryozoans include the new genus and type species Sakagamiin a easternensis belonging to the Timanodictyidae. Other new species are Fist uliramus pacificus, Meekoporella inflecta, Neoeridotrypella missionensis, C oeloclemis urhausenii, Tabulipora colvillensis, Rhombotrypella kettlensis, Pamirella oculus, Pinegopora petita, Wjatkella nanea, Alternlifenestella va grantia, Polypora arbusca, and Mackinneyella stylettia.