Goniopora microscopica ( Duncan, 1863 )

Baron-Szabo, Rosemarie C., 2008, Dendrophylliina, Caryophylliina, Fungiina, Microsolenina, and Stylinina, Zootaxa 1952, pp. 1-244 : 145-146

Goniopora microscopica ( Duncan, 1863)

Pl. 13, figs 1, 2

v*1863 Alveopora microscopica: Duncan , p. 426, pl. 14, fig. 5.

1867 Alveopora microscopica Duncan : Duncan, p. 25.

1880 Isastraea punctata, Duncan : Duncan, p. 44, pl. 18, figs 10–13.

v1900 Litharaea Colae , sp. nov.: Gregory, p. 37, pl. 2, figs 12a, b.

v1919 Goniopora regularis var. microscopica (Duncan) : Vaughan, p. 492.

1986 Goniopora microscopica (Duncan) : Foster, p. 86.

Dimensions. d=1.2–1.7 mm, juvenile around 0.9 mm; c-c=2.2–3.2 mm; s=24–26.

Description. Massive, columniform or ramose, subcerioid colony; calices rounded or irregularly polygonal in outline; septa thin, nearly equal, arranged bilaterally; about 10 septa reach the center of the calice; a set of 7 to 10 septa reaches about half the length of S1, sometimes fusing with septa of the preceding cycle; youngest septa distinctly shorter; columella irregular spongy-papillose or formed by twisted segments; wall parathecal or synapticulothecal, incomplete; endothecal dissepiments very thin, vesicular.

Type locality of species. Upper Oligocene of Antigua ( Antigua Formation) .

Distribution. Middle-Upper Maastrichtian of Jamaica (this paper), Paleocene of Pakistan (Jhirk, Sind), Upper Paleocene of Somalia, Upper Oligocene ( Antigua Formation) of Antigua.

New Material. Middle-Upper Maastrichtian of Jamaica, NMNH, Coates coll., sample nos.: 350; 359a;

370b; 387a; 393a (=Jerusalem Mountain Inlier).