Text-Fig. 18
v*1958 Wellsia cyathiformis n. sp.: Squires, p. 57, pl. 10, figs 16–20.
1962 Wellsotrochus cyathiformis (Squires): Squires, p. 145.
1962 Wellsotrochus conicus, n. sp.: Squires, p. 145, pl. 3, figs 6–7.
1972 Kangiliacyathus groenlandicus gen. n. & sp. n.: Floris, p. 67, pl. 4, figs 2A–3.
v1994 Levicyathus cairnsi n. sp.: Filkorn, p. 60, figs 20 (1–4).
v1997 Levicyathus cairnsi Filkorn, 1994: Cairns, p. 18, figs 2d and 5a.
1997 Wellsotrochus cyathiformis (Squires, 1958): Cairns, p. 21, fig. 2j.
1997 Wellsotrochus conicus Squires, 1958: Cairns, p. 22.
2000 Levicyathus cairnsi, Filkorn 1995: Löser, p. 48.
2000 Wellsotrochus cyathiformis, Squires 1958: Löser, p. 86.
2002 Wellsotrochus cyathiformis (Squires, 1958): Baron-Szabo, p. 175, text-fig. 74.
v2002 Levicyathus cairnsi Filkorn, 1994: Baron-Szabo, p. 176, pl. 122, figs 5–6.
Dimensions. d (min)=3.5– 8 mm; d (max)=5–9.5 mm; d (min)/d (max)=0.61–1; s=24–48+s5; h=3–6.3 mm.
Description. Solitary, variably conical or bowl-shaped to discoidal; circular to elliptical in outline; costosepta arranged in 3 to 4 cycles in 6 systems; septa of a beginning fifth cycle in largest specimens present.
Type locality of species. Campanian-Maastrichtian (Haumurian) of New Zealand.
Distribution. Campanian-Maastrichtian of New Zealand, Maastrichtian of Antarctic Peninsula, Lower Danian of Denmark (Greenland).