Proleptophyllia punctulum (Fromentel and Ferry, 1866) Vasseur & Lathuilière, 2021

Vasseur, Raphaël & Lathuilière, Bernard, 2021, Pliensbachian corals from the Western Tethys, Geodiversitas 43 (22), pp. 1187-1291 : 1228

Proleptophyllia punctulum (Fromentel & Ferry, 1866), n. comb.

( Fig. 26 )

Montlivaltia punctulum Fromentel & Ferry, 1866: 124 , pl. 34, fig. 3.

Procyclolites? punctulum – Alloiteau 1957: 107, pl. 5, fig. 11.

Proleptophyllia punctulum – Vasseur 2018: 304-305, fig. 3.80.

TYPE MATERIAL. — Holotype: MNHN.F. M03502 , by monotypy. TYPE HORIZON. — Pliensbachian. TYPE LOCALITY. — May-sur-Orne (Calvados, France). STUDIED SAMPLE. — Holotype MNHN.F. M03502 . GEOGRAPHIC AND STRATIGRAPHIC RANGES. — Pliensbachian of May-sur-Orne, Calvados , France.

DESCRIPTION

Solitary, conical coral, strongly infundibuliform with sharp calicular edges, circular in outline. Radial elements are subcompact, straight, free septa with distal edge ornamented with regular small trabecular teeth. Lateral faces hold pennulae with pennular rims curved upward. Radial symmetry. No columella or maybe a weak parietal papillose one in depth. Endotheca and synapticulae not observed. Peripheral wall of undefined nature. An epitheca s.l. wraps the corallum.

Calicular diameter: 22 mm – Number of septa: approximately 216 – Septal density: 7 per 2 mm – Trabecular density 6 per 2 mm.

SIMILARITIES AND DIFFERENCES

This specimen is distinct among the species of the genus Proleptophyllia because of its very specific shape and the regularity of its septal apparatus.

Figures

FIG. 26. — Proleptophyllia punctulum (Fromentel & Ferry,1866), n. comb.:A, holotype MNHN.F.M03502; B, lateral view of the holotype MNHN.F.M03502; C, distal view of the holotype MNHN.F.M03502; D, detail of the pennular ornamentation of septa of the holotype MNHN.F.M03502. Scale bars:A,B, 1 cm;C, 5 mm;D,1 mm.