Description of a bryozoan fauna from mud mounds of the Lebanza Formation (Lower Devonian) in the Arauz area (Pisuerga-Carrión Province, Cantabrian Zone, NW Spain) Author Ernst, Andrej Author Fernández, Luis Pedro Author Fernández-Martínez, Esperanza Author Vera, Carmen text Geodiversitas 2012 2012-12-31 34 4 693 738 http://dx.doi.org/10.5252/g2012n4a1 journal article 10.5252/g2012n4a1 1638-9395 5380890 Genus Rectifenestella Morozova, 1974 TYPE SPECIES . — Fenestella medvedkensis Schulga-Nesterenko, 1951 , by subsequent designation ( Morozova 1974 ). Upper Carboniferous , Kasimovian-Stage ; Russian Platform. OCCURRENCE. — Lower Devonian-Upper Permian. DIAGNOSIS. — Reticulate colonies consisting of fine to intermediately robust branches and straight dissepiments. Autozooecia triangular to pentagonal in mid tangential section. Superior hemisepta present; inferior hemisepta absent. Narrow keel with one row of intermediate nodes. COMPARISON Rectifenestella differs from Laxifenestella Morozova, 1974 in the pentagonal shape of the autozooecia in mid tangential section and the absence of inferior hemisepta. Rectifenestella differs from Minilya Crockford, 1944 in the single row of nodes on the keel whereas Minilya has two alternating rows of small nodes on the wide keel.