FIG. 19. — A-F in 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)

FIG. 19. — A-F, Hemitrypa lasutkiniae Waschurova,1964; A, B, oblique tangential section showing protecting superstructure and nodes on the reverse surface,SMF 21.355; C, D, tangential section showing autozooecial chambers, SMF 21.358; E, tangential section of reverse side showing nodes, SMF 21.357; F, openings in superstructure, tangential section, SMF 21.358; G, H, Tectulipora tuberculata n. sp., branch transverse section showing branches and superstructure, paratype SMF 21.380. Scale bars: A, C, H, 1 mm; B, G, 0.5 mm; D-F, 0.2 mm.