Alveolocyathus felixi

Alveolocyathus felixi (Filkorn, 1994)

Pl. 8, fig. 3

v*1994 Conocyathus felixi n. sp.: Filkorn, p. 47, figs 16 (1–4).

v1994 Alveolocyathus nordenskjoeldi n. gen. n. sp.: Filkorn, p. 61, figs 21 (1–4).

v1994 Laminocyathus wellsi n. sp.: Filkorn, p. 64, figs 22 (1–4).

v1997 Laminocyathus wellsi Filkorn, 1994: Cairns, p. 19, figs 2b, 5d.

v1997 Alveolocyathus nordenskjoeldi: Cairns, p. 60–61, pl. 2, fig. 2c; Pl. 5, fig. 5e.

v1997 Conocyathus felixi: Cairns, p. 61.

2000 Alveolocyathus nordenskjoeldi, Filkorn 1995: Löser, p. 7.

2000 Laminocyathus wellsi, Filkorn 1995: Löser, p. 45.

v2002 Alveolocyathus nordenskjoeldi Filkorn, 1994: Baron-Szabo, p. 174, text-fig. 72.

v2002 Laminocyathus wellsi Filkorn, 1994: Baron-Szabo, p. 175, text-fig. 73.

Dimensions. d=7.5–8.3 mm; s=48; h=7.5 mm

Description. Conical with pointed base; circular in outline; costosepta arranged in 4 cycles in 6 systems.

Remarks. Filkorn (1994, p. 47 and 61) described the forms Conocyathus felixi and Alveolocyathus nordenskjoeldi. Later, Cairns (1997, p. 20) united these two forms, considering Conocyathus felixi as the junior synonym. However, because the latter was established 14 pages before A. nordenskjoeldi, it has to be considered the senior synonym. The validity of A. nordenskjoeldi as the type species of the genus Alveolocyathus is not affected by its position as a junior synonym (ICZN 67.1.2).

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

Distribution. Maastrichtian of Seymour Island (Antarctic Peninsula).