A Stylocoenia maxima Duncan, 1880; NHMW 1933/0008/0006 (holotype of Astrocoenia rariseptata Kühn, 1933), calicular view of colony, upper surface, showing abraded intercorallite pillars (arrows) (image courtesy of Alice Schumacher, Natural History Museum Vienna, Austria); upper Maastrichtian (Tarbur Fm.), Neyriz area, southern Iran. B Stylocoeniella expansa (d’Achiardi, 1875); Pb29 (10), calicular view of colony, thin section, showing abraded intercorallite pillars as seen in, e.g., Stylocoeniella armata, USNM 80263 (arrows); Danian or Selandian, Kuh-e-Patorgi, Sistan Suture Zone, eastern Iran. C Stylocoenia maxima Duncan, 1880; 2NG202 (4), calicular view of colony, thin section; upper Maastrichtian (Tarbur Fm.), Naghan, Zagros Zone, southwestern Iran. D Stylocoeniella hoernesi (Oppenheim, 1901); 2NG147 (42), calicular view of colony, thin section, showing abraded intercorallite pillars as seen in, e.g., Stylocoeniella armata, USNM 4922 and 80263 (arrows), upper Maastrichtian (Tarbur Fm.), Naghan, Zagros Zone, southwestern Iran. E Stylocoenia maxima Duncan, 1880; Qs98 (16), calicular view of colony, slightly oblique, thin section; Selandian, Qorban, Zagros Zone, southwestern Iran. F Acropora bancellsae Álvarez-Pérez, 1997; 2NG127 (18), calicular view of colony, thin section, showing main corallite tube (arrow on right) and secondary corallite (arrow on left); upper Maastrichtian (Tarbur Fm.), Naghan, Zagros Zone, southwestern Iran. G Acropora bancellsae Álvarez-Pérez, 1997; 2NG127 (19), calicular and oblique longitudinal views of colony, thin section, showing main corallite tube (arrow on upper right) and secondary corallite (arrow on lower left); upper Maastrichtian (Tarbur Fm.), Naghan, Zagros Zone, southwestern Iran. H Acropora bancellsae Álvarez-Pérez, 1997; BN46‒b (5), calicular and longitudinal views of colony, thin section, showing secondary corallites (arrows) standing off of main corallite tube; Selandian‒Thanetian, Bandan, Sistan Suture Zone, eastern Iran