Bryozobia rossi sp. n. CEL-SJP5-1. A basal view of shell showing basis (central part destroyed) with atria and basal calcipeds B part of margin of basis with two atria and their portals (indicated by arrows) C suture (indicated by arrow) between CL1 and R, interior view D exterior view of part of shell with interparietal and parietal portals (indicated by arrows) in basal parts of CL1 and R E enlarged part of basis with porous atria F enlarged fillets of hemiportals (indicated by arrow) showing porous and sliced structure between basis and parietes, external view G basal view of interparietal portal opening H enlarged broken atrial fillet (tube) showing sliced structure (inner side of shell) I sutures between CL1, CL2 and C (indicated by arrows) and fillet of interparietal portal eliminated CL2, interior view J enlarged sutures (indicated by arrows) between CL1, CL2 and C K exterior view of interparietal portal eliminates CL2. Abbreviations: C, carina; CL1, carinilateral1; CL2, carinolateral2; R, rostrum. Scales: 1 mm (A); 0.1 mm (B–K).