Tamnoseris de Fromentel, 1861

Baron-Szabo, Rosemarie Christine, Tschanz, Karl & KÜrsteiner, Peter, 2022, Scleractinian corals from the Lower Cretaceous of the Alpstein area (Anthozoa; Vitznau Marl; lower Valanginian) and a preliminary comparison with contemporaneous coral assemblages, Swiss Journal of Palaeontology (3) 141 (1), pp. 1-61 : 27

Genus Tamnoseris de Fromentel, 1861

Type species. Tamnoseris incrustans de Fromentel, 1861 , Middle Jurassic of France (Chaumont, Saint Claude, French Jura) .

Diagnosis. Colonial, massive, hemispherical, cerio-thamnasterioid, corallites arranged in short-meandroid series present or absent. Budding extracalicular-marginal. Costosepta confluent, irregularly perforated, granulate and probably pennulate laterally. Anastomosis frequently present. Columella parietal-papillose. Synapticulae numerous. Endothecal dissepiments vesicular, thin. Intertrabecular distance ranging between 120 and ca. 240 µm. Wall synapticulothecal, incomplete.