Smilotrochus milneri ( Gregory, 1898 )

Baron-Szabo, Rosemarie C., 2008, Dendrophylliina, Caryophylliina, Fungiina, Microsolenina, and Stylinina, Zootaxa 1952, pp. 1-244 : 84

Smilotrochus milneri ( Gregory, 1898)

Pl. 7, figs 6–8

*1898 Coelosmilia Milneri , n. sp.: Gregory, p. 248, pl. 8, figs 1–3.

v1902 Coelosmilia Milneri Gregory : Wanner, p. 102, pl. 14, figs 19–24.

v1936 Smilotrochus Jacobi (nov. sp.): Alloiteau, p. 12, pl. 6, figs 3–38.

v1996 Smilotrochus jacobi Alloiteau, 1936 : Baron-Szabo, in Baron-Szabo & Steuber, p. 20, pl. 8, figs 5–6.

1996 Dungulia milneri ( Gregory, 1898) : Schuster, Appendix list.

v1999 Smilotrochus jacobi Alloiteau, 1936 : Baron-Szabo, p. 451, pl. 4, fig. 2.

2000 Smilotrochus jacobi, Alloiteau 1936 : Löser, p. 73.

2002 Smilotrochus jacobi Alloiteau, 1936 : Baron-Szabo, p. 170.

Dimensions. d (min)= 9–15 mm; d (max)= 26–30 mm; d (min)/d (max)=0.35–0.73; s=40–96; h=up to 35 mm.

Description. Solitary, trochoid; compressed in adult stages that have a maximum corallite diameter of 30 mm (ratio d (min)/d (max)=0.35), elliptical in younger ontogenetical stages; in corallite diameters of d (max) ranging between 15–18 mm the ratio d (min)/d (max) varies between 0.5 and 0.73; costosepta thin, wavy to flexuous, arranged in 5 complete cycles in a corallite of d (max) 26–30 mm; in corallites of d (max) 15–18 mm the number of septa is around 48, arranged in 4 complete or nearly complete irregular cycles in 6 systems; 12 (younger stages)–24 (late adult stage) septa equal, reaching the axial region.

Remarks. See discussion above in the Remarks chapter below genus description of Smilotrochus .

Type locality of species. Lower Eocene of Egypt (Dungul Wells) .

Distribution. Aptian of Greece, Upper Turonian of Austria (Gosau Group at Weissenbachalm), Campanian-Maastrichtian of Madagascar (Narinda), Paleocene-Lower Eocene of Egypt.

New Material. Danian of Egypt (Babel Jasmund), NRM-PZ, sample nos.: Cn 47533–35.