Deltocyathus whitei Durham, 1943

Baron-Szabo, Rosemarie C., 2008, Dendrophylliina, Caryophylliina, Fungiina, Microsolenina, and Stylinina, Zootaxa 1952, pp. 1-244 : 64-65

Deltocyathus whitei Durham, 1943

Pl. 5, figs 7a, b

v*1943 Deltocyathus whitei Durham , n. sp.: Durham, p. 200, pl. 32, figs 13, 16, text-fig. 1.

(v)1969 Platycyathus ghiroboensis n. sp.: Barta-Calmus, p. 820, pl. 1, figs 6–7.

Dimensions. d (max)= 11–14 mm; s=84–96; h=3.8–6.8 mm.

Description. Discoid, circular in outline; costosepta thin, wavy, arranged in 4 complete cycles in 6 systems with a small number of septa of a beginning fifth cycle, regularly alternating in length and thickness; S1– S3 reach the axial region; character of columella uncertain.

Remarks. Barta-Calmus (1969) described the species Platycyathus ghiroboensis from the Paleocene of Ivory Coast. In having only a small number of endothecal dissepiments (absence of endotheca according to Barta-Calmus [1969] but type specimens seem to show a small number of endothecal dissepiments in the illustrations on Plate 1, Figs 6a and 7), a corallum that is discoidal in shape, and pali that seem to be positioned before all septal cycles, the specimens rather correspond to the genus Deltocyathus , and closely resemble the species D. whitei .

Text-Fig. 7 Deltocyathus cupuliformis ( Alloiteau, 1951b) , based on the illustration of holotype in Alloiteau (1951b), Upper Maastrichtian of Madagascar, cross view of lower part of corallum, scale bar: 10 mm .