Sphenotrochopsis

Alloiteau and Tissier, 1958, p. 268

Valid, originally placed in the Turbinoliidae, but the presence of an epitheca argues against that placement (Cairns, 1997); recently transferred to the Caryophylliidae as junior synonym of Asterosmilia Duncan, 1867 (see Baron-Szabo, 2008, p. 78-79).

Type Species

S. alloiteaui Alloiteau and Tissier, 1958, p. 269, pl. 1, fig. 1.; Original Designation

Type Specimen: Syntype; ; Not Traced; Dry Preserved

Type Locality: Early Paleocene: Puits Goffint, France.

2 syntypes

Diagnosis

Corallum solitary, turbinate, slightly curved, free; calice laterally compressed; wall septo- and parathecal, covered by a thin epitheca near calice; costae trifurcate; pali absent but paliform teeth present on oldest septa; columella lamellar.

Comparisons

Distinguished from Sphenotrochus by its trochoid (not cuneiform) shape, and presence of epitheca.

Remarks

3 fossil species

This page has been in preparation since 08-Oct-2008 15:21

This version was contributed by Stephen D. Cairns on 27-Jul-2017 20:17.

Page authors are: Stephen D. Cairns Rosemarie Baron-Szabo. Please contact the editor if you would like to contribute to the diagnosis of this taxon.

The editor is: Stephen D. Cairns