Asterosmilia alloiteaui ( Alloiteau & Tissier, 1958 )

Baron-Szabo, Rosemarie C., 2008, Dendrophylliina, Caryophylliina, Fungiina, Microsolenina, and Stylinina, Zootaxa 1952, pp. 1-244 : 78-79

Asterosmilia alloiteaui ( Alloiteau & Tissier, 1958)

Text-Fig. 12

(v)*1958 Sphenotrochopsis alloiteaui nov. sp.: Alloiteau & Tissier, p. 269, pl. 1, figs 1a–b’.

(v)1958 Sphenotrochopsis chavani nov. sp.: Alloiteau & Tissier, p. 271, pl. 1, figs 2a–b’.

(v)1958 Sphenotrochopsis straeleni nov. sp.: Alloiteau & Tissier, p. 272, pl. 1, figs 3a–b’.

(v)1958 Kionotrochus briarti nov. sp.: Alloiteau & Tissier, p. 277, pl. 1, figs 7a–b’.

(v)1958 Kionotrochus montensis nov. sp.: Alloiteau & Tissier, p. 280, pl. 1, figs 6a–b’.

Dimensions. d (min)=3.8–6.5 mm; d (max)=4.4–7.5 mm; d (min)/d (max)=0.75–0.87; s=36–64.

Description. Trochoid-ceratoid corallum, slightly compressed in outline; costosepta are arranged in 6 systems, in corallite diameters of 4–5 mm around 40 septa are found, in a corallite diameter of around 6 mm 4 complete cycles of septa are present;

Remarks. As pointed out by Cairns (1997), the specimens ascribed to Kionotrochus by Alloiteau & Tissier (1958) differ from this genus in having an epithecal wall, a spongy columella, and an apparently attached corallum. In showing 1) paliform structures before S3 (as seen in the type material illustrated on Pl. 1, figs 6a– 7b’), 2) finely granulated, compact costosepta, 3) a trabecular columella that appears lamellar at surface, and 4) both septothecal-septoparathecal and epithecal walls, the taxa originally described as K. briarti and K. montensis correspond to the genus Asterosmilia . Regarding the species originally described as K. alloiteaui and K. chavani see Remarks section above for the genus Asterosmilia .

Type locality of species. Upper Danian of Belgium .

Distribution. Upper Danian of Belgium.

Text-Fig. 12 Asterosmilia alloiteaui ( Alloiteau & Tissier, 1958) . A, B, holotype of Asterosmilia alloiteaui ( Alloiteau & Tissier, 1958) based on the illustrations in Alloiteau & Tissier (1958), figured as Sphenotrochus alloiteaui Alloiteau & Tissier, 1958 , Upper Danian of Belgium, A, cross view of corallum; B, upper surface longitudinal view; C, D, holotype of Sphenotrochus chavani Alloiteau & Tissier, 1958 (=junior synonym of Asterosmilia alloiteaui [ Alloiteau & Tissier, 1958]), based on the illustrations in Alloiteau & Tissier (1958), Upper Danian of Belgium, C, cross view of corallum; D, upper surface longitudinal view; E, F, holotype of Sphenotrochus straeleni Alloiteau & Tissier, 1958 (=junior synonym of Asterosmilia alloiteaui [ Alloiteau & Tissier, 1958]), based on the illustrations in Alloiteau & Tissier (1958), Upper Danian of Belgium, E, cross view of corallum; F, upper surface longitudinal view; G, H, holotype of Kionotrochus briarti Alloiteau & Tissier, 1958 (=junior synonym of Asterosmilia alloiteaui [ Alloiteau & Tissier, 1958]), based on the illustration in Alloiteau & Tissier (1958), Upper Danian of Belgium, G, cross view of corallum; H, upper surface longitudinal view; I, J, holotype of Kionotrochus montensis Alloiteau & Tissier, 1958 (=junior synonym of Asterosmilia alloiteaui [ Alloiteau & Tissier, 1958]), based on the illustration in Alloiteau & Tissier (1958), Upper Danian of Belgium, I, cross view of corallum; J, upper surface longitudinal view, scale bar: 5 mm.