FIG. 15. — A-C, Orthopora spinosa n 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. 15. — A-C, Orthopora spinosa n. sp.; A, branch transverse section showing autozooecia growing from distinct median axis, paratype SMF 21.258; B, C, tangential section showing apertures and acanthostyles, paratype SMF 21.268; D-I, Vidronovella elegantula n. sp.: D, branch oblique section, holotype SMF 21.294; E, F, tangential section showing autozooecial apertures and distribution of acanthostyles, holotype SMF 21.294; G, H, longitudinal section showing autozooecia with hemisepta, holotype SMF 21.294; I, branch transverse section showing autozooecia growing from distinct median axis, paratype SMF 21.312. Scale bars: A, C, E-G, 0.2 mm; B, H, I, 0.5 mm.