Flabellum anderssoni (Felix, 1909)

Baron-Szabo, Rosemarie C., 2008, Dendrophylliina, Caryophylliina, Fungiina, Microsolenina, and Stylinina, Zootaxa 1952, pp. 1-244 : 86-87

? Flabellum anderssoni (Felix, 1909)

Text-Fig. 16

Text-Fig. 16? Flabellum anderssoni (Felix, 1909) , syntype NRZ Cn 85, Maastrichtian of Antarctic Peninsula, cross view ,

*1909 Parasmilia Anderssoni nov. sp.: Felix, p. 8, pl. 1, figs 7–7d.

1914 Parasmilia Anderssoni Felix 1909 : Felix, pars 7, p. 227.

1949 Parasmilia Anderssoni Felix : Furque & Camacho, p. 276, 293, and 295.

v1967 Flabellum primitivum nov. spec.: Kühn & Traub, p. 14, pl. 1, figs 11, 12.

(v)1972 Flabellum groenlandicum sp. n.: Floris, p. 81, pl. 5, figs 6A, B, pl. 6, figs 1–33, text-fig. 16.

v1994? Flabellum anderssoni (Felix, 1909) : Filkorn, p. 67, figs 24 (1–3) and 25 (1–3) (older synonyms cited therein).

2000 Flabellum anderssoni (Felix 1909) : Löser, p. 36.

Dimensions. d (min)=1.5– 15 mm; d (max)= 6–21 mm; d (min)/d (max)=0.71–0.82, often ranging from 0.6– 0.7 in juvenile stages; s=24–48; h=up to 23 mm.

Description. Solitary, trochoid-subcylindrical; slightly elliptical in outline in more adult stages, compressed in juvenile coralla; costosepta straight, arranged in 3 to 4 cycles in 6 systems; 3 cycles are complete when corallite is around d (max) 15 mm; 12 septa reach the axial region; trabecular extensions of their inner ends fuse forming a weakly developed pseudo-columella.

Remarks. Filkorn (1994, p. 67 ff.) re-evaluated the taxon Parasmilia anderssoni and tentatively transferred it to the genus Flabellum . However, the septal development also seems characteristic of juvenile stages of the genus Flabellosmilia (Baron-Szabo 2003) .

The species F. primitivum closely corresponds to juvenile stages of F. anderssoni ; therefore, their synonymy is suggested.

Type locality of species. Maastrichtian of Antarctic Peninsula (Seymour Island) .

Distribution. Maastrichtian (Seymour Island)-Danian (Tierra del Fuego) of Antarctica, Paleocene of Austria, Upper Danian of Denmark ( Greenland).