Alloiteau and Tissier, 1958, 283

Monticyathus Alloiteau and Tissier, 1958, 283 is a junior synonym (available and invalid), see Bathycyathus Milne Edwards and Haime, 1848.

Originally placed in the Turbinoliidae, but, as previously noted (Cairns, 1997), the presence of an epitheca argues against that placement. Re-evaluation of the original documentation revealed that the illustrations of the type specimen differed from the description of the holotype in that there were indeed dissepiments and rather septothecal (septoparathecal in places) developments present, whereas the authors had stated that an endotheca was absent and a parathecal wall was present. In addition, the illustrations of the holotype showed a turbinate corallum, that had a spongy-net-like columella, and pali that were generally fused with columellar segments. Therefore, the assignment to the genus Bathycyathus was suggested (Baron-Szabo, 2008)

Type Species

M. lehmani Alloiteau and Tissier, 1958, p. 284, pl. 1, fig. 8; Original Designation

Type Specimen: Syntype; ; Not Traced; Dry Preserved

Type Locality: Early Paleocene: Puits Goffint, France.

4 syntypes



Corallum solitary, turbinate, slightly curved, fixed; parathecal wall covered with thin epitheca; costae trifurcate; irregular septal symmetry; one crown of pali before 18 large septa; large, spongy columella.


Compared to Conocyathus and Tropidocyathus by the original authors, but differing in corallum shape and number of pali.


1 fossil species


  • Southern Europe; Paleocene

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

This version was contributed by Rosemarie Baron-Szabo on 30-Aug-2010 18:54.

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

No Images Found