Stylocoeniella expansa ( d’Achiardi, 1875)

Stylocoeniella expansa ( d’Achiardi, 1875)

Fig. 10B

v*1875 Astrocoenia expansa , m: d’Achiardi, p. 183 ‒ 184, Pl. 15, Fig. 3a ‒ c View Fig .

1901 Astrocoenia expansa d’Achiardi : Oppenheim, p. 224, Pl. 14 (4), Figs. 17 ‒ b.

1925 Astrocoenia expansa d’Achiardi, 1875 : Felix, 240‒241 [cum synonymis].

Dimensions. d (monocentric): 0.7 ‒ 1 mm, in areas of intense budding 0.4 ‒ 0.7 mm; c–c: up to around 1 mm; s: 12 ‒ 16 (+ s).

Description. Ramose colony; corallites in cerioid to cerio-plocoid integration; costosepta developed in 2 complete cycles in 6, 8, or unclear systems; one or more septa of S1 reach corallite center, sometimes fusing with the small styliform columella.

Type locality of species. Eocene of Italy .

Distribution. Danian or Selandian of Iran (Zagros Zone, southwestern), Eocene of Italy, Middle Eocene of Bosnia-Herzegovina.

New material. Pb29 (10) (Sistan Suture Zone, eastern Iran); Qs93 (25) (Zagros Zone, southwestern Iran);