GBIF Taxonomic Backbone & Wikipedia Registry Profile
Description. Colony suberect to erect, flabellate (Fig. 13), pale lemon yellow (Fig. 2 G, H), supported by founding zooids and additional pillars derived from autozooids (Figs 13 B, F, 15 C – I); up to 5.77 mm long and 9.09 mm wide. Arcuate lateral margins of large colonies tending to curve proximad, occasionally meeting around a space or spaces, creating open calyciform shape (Figs 2 G, 13 A). Supportive pillars of about 4 – 8 connate zooids, each budded in such a way as to be bent, with proximal portion subvertical, descending towards substratum (e. g. Fig. 15 F), and frontodistal part forming peristomial tubes (e. g. Fig. 15 I). No kenozooids. Surface calcification of colony forming sinuous concentric striae (Figs 13 D, 14 A, E – J) and having fibrous (planar-spherulitic) microstructure (Fig. 14 K); pseudopores small, simple, sparse, evenly distributed. Frontal surface with evenly distributed autozooidal peristomes, all obliquely inclined in direction of colony growth, generally longer towards colony margin, fully formed apertures mostly circular (Fig. 14 J), calcified terminal diaphragms rare. New zooids budded from part of distobasal wall of preceding zooid (Fig. 14 G, H), hence zooids partly overlapping. Interior wall surface of imbricated foliated fabric of wedge-shaped crystallites; no spinules (Fig. 14 K). Gonozooid simple, transversely reniform (Fig. 14 A), wedged in among autozooidal peristomes at colony margin, moderately densely pseudoporous, narrow ooeciostome directed outwards, with more or less circular ooeciopore (Fig. 14 B – E). Ancestrula (Figs 14 L – N, 15 D – I, K), suberect, inclined at 50 – 60 ° angle to substratum. Protoecium typically flared at base, narrowing at base of peristome but no distinction in surface calcification of needle-like crystallites; peristome tending to be angled to one side (Figs 14 L, 15 H, I). Later daughter zooids tending to form descending outgrowths to substratum, helping to support ancestrula as colony grows; no basal kenozooids. Measurements (mm). Holotype, ZIRAS 1 / 50703 (Fig. 13 A – B): Colony length 3.28, width 4.88, height 2.79; ZL 0.597 – 0.802 (0.711 ± 0.074); PeL 0.062 – 0.191 (0.108 ± 0.037); PeD 0.148 – 0.185 (0.171 ± 0.012); ApL 0.136 – 0.165 (0.149 ± 0.008); ApW 0.124 – 0.143 (0.133 ± 0.006). Paratype 3, ZIRAS 4 / 50706 (Fig. 14 A – E): Gonozooid (n = 1): GZL 0.703; GZW 0.880; GZH 0.383; OsL 0.155; OsD 0.133; OpD 0.111. Non-type specimen YMG 4 – 04, Stn 44 (Figs 14 L – M, 15 G – K): Ancestrula (n = 1): AnH 0.903; AnPeD 0.221; AnPrL 0.247; AnPrW 0.234.
