Brachymeandra Alloiteau, 1957

Baron-Szabo, Rosemarie C., 2008, Dendrophylliina, Caryophylliina, Fungiina, Microsolenina, and Stylinina, Zootaxa 1952, pp. 1-244 : 125

Genus Brachymeandra Alloiteau, 1957

(= Brachycoenia Beauvais, 1982 , Type species. Adelastraea leptophylla Reuss, 1854 , Upper Santonian of Austria).

Type species. Brachymeandra delphinensis Alloiteau, 1957 , Turonian of France .

Diagnosis. Colonial, massive, thamnasterioid, plocoid to submeandroid superficially. Gemmation intracalicinal. Costosepta subcompact or porous, subconfluent or confluent. Marginally beaded, finely granulated laterally. Columella parietal-papillose. Paliform structures present. Synapticulae abundant. Endothecal dissepiments thin, subtabulate. Perithecal wall can be present. Generally no wall between the calices.

Remarks. Based on the species Adelastraea leptophylla Reuss, 1854 , M. Beauvais (1982, vol. 2: 47) created the genus Brachycoenia , which differs only slightly from the genus Brachymeandra Alloiteau. Beauvais mentions the existence of paliform structures in Brachymeandra as the main difference between the two genera. However, later investigations of the type material of Brachycoenia ( Baron-Szabo 2002, 2003) revealed the occasional existence of paliform structures. Therefore, the separation of these taxa does not seem justified.