Actinacis d’Orbigny, 1849

Genus Actinacis d’Orbigny, 1849 View in CoL

Type species. Actinacis martiniana d’Orbigny, 1850 View in CoL , Upper Santonian of France (Figuières) .

Diagnosis. Colony plocoid. Colony formation by extracalicinal budding. Corallites are embedded in a coenosteum. Costosepta have few, but large perforations. Anastomosis present. Septal flanks granular. Wall synapticulothecate, incomplete. Columella parietal or substyliform or formed by elongated segments. No pali. Synapticulae abundant. Endothecal dissepiments sparse. Skeletal microstructure consists of simple and compound trabeculae.

Actinacis barretti Wells, 1934a

Fig. 12A

v*1934a Actinacis barretti : Wells, p. 101, Pl. 4, Figs. 1 ‒ 2. View Fig View Fig

v1960 Actinacis barretti Wells : Berryhill, et al., p. 151.

1974 Actinacis caribiensis View in CoL : Frost & Langenheim, p. 217, Pl. 71, Figs. 1 ‒ 5 View Fig View Fig View Fig View Fig View Fig .

1974 Actinacis sp. cf. A. barretti Wells : Frost & Langenheim, p. 219, Pl. 72, Figs. 1 ‒ 5 View Fig View Fig View Fig View Fig View Fig .

1974 Porites anguillensis Vaughan View in CoL : Frost & Langenheim, p. 221, Pl. 75, Figs. 1 ‒ 3 View Fig View Fig View Fig .

1974 Goniopora copoyensis View in CoL n. sp.: Frost & Langenheim, p. 238, Pl. 81, Figs. 5 ‒ 6 View Fig View Fig .

1991 Actinacis alabamensis View in CoL : Bryan, p. 426ff.

1997 Actinacis alabamensis View in CoL : Stemann, in Bryan et al., p. 33, Text— Fig. 1A. View Fig

v1997 Actinacis barretti Wells, 1934 : Vecsei & Moussavian, p. 131, Pl. 36, Fig. 3. View Fig

v2008 Actinacis barretti Wells, 1934 : Baron-Szabo, p. 103 ‒ 104, Pl. 8, Fig. 10 [cum synonymis].

Dimensions. d: 0.8 ‒ 1.2 mm; c–c: 1.2 ‒ 2.1 mm; s: 18 ‒ 24,