Dendrophylliina, Caryophylliina, Fungiina, Microsolenina, and Stylinina Author Baron-Szabo, Rosemarie C. text Zootaxa 2008 2008-12-05 1952 1 244 journal article 1175­5334 Siderastrea conferta ( Duncan, 1863 ) Pl. 14, fig. 1 v*1863 Isastrea conferta , spec. nov. : Duncan, p. 422, pl. 14, fig. 2 (topotypes studied). v1867 Isastrea conferta, Dunc. : Duncan, p. 25 (topotypes studied). v1900 Siderastrea hexagonalis sp. nov. : Vaughan, p. 155, pl. 18, figs 1–4. v1919 Siderastrea conferta (Duncan) : Vaughan, p. 451, pl. 117, fig. 3, pl. 120, figs 1–4, pl. 121, figs 1–2a. 1925 Siderastrea conferta Duncan sp. 1863: Felix, pars 28, p. 131. 1925 Siderastrea hexagonalis Vaughan 1919 : Felix, pars 28, p. 132. 1974 Siderastrea (Siderastrea) conferta (Duncan) : Frost & Langenheim, p. 206, pl. 66, figs 1–6. 1974 Siderastrea (Siderastrea) hexagonalis Vaughan : Frost & Langenheim, p. 210, pl. 68, figs 1–3. 1989 Siderastrea conferta : Budd et al . , pp. 267ff. 1994 Siderastrea conferta : Budd et al . , pp. 957, 965, 974. Dimensions. d (max)=3.5–7.5 mm, juveniles as small as 2.5 mm; c-c= 3–6 mm ; s=50–82. Description. Massive, cerioid; costosepta arranged in 4 complete and a beginning fifth cycle in 6 systems; up to 12 septa reach corallite center; columella formed by a small number of papillae or spongy. Remarks. The forms listed in synonymy above are all characterized by corallite diameter ranging between 3.5–7.5 mm, septa in more than 4 complete cycles in 6 systems and reaching nearly 5 complete cycles in latest adult stages, and a corallite wall generally formed by 1 to 2 synapticular rings. Type locality of species. Lower-Middle Miocene of Anguilla ( Anguilla Formation ) . Distribution. Paleocene of the USA (Midwayan, Alabama ), Lower Eocene (Lecheria limestone) and Upper Oligocene of Mexico (Rancho Berlin Sandstone and La Quinta Formation), and Puerto Rico , Lower- Middle Miocene of Anguilla ( Anguilla Formation).