TETRATAXIDAE Galloway, 1933

Vachard, Daniel & Le Coze, Francois, 2024, Paleozoic Foraminifera: Current State Of The Classification And Perspectives, Acta Palaeontologica Romaniae 20 (2), pp. 97-130 : 112

Family TETRATAXIDAE Galloway, 1933

Test conical, trochospiral, with a planar to slightly depressed face. Umbilical face depressed to planar or forming more or less developed umbilical pivots ( Globotetrataxis , some Tetrataxis ). Mode of life attached to vagile, epiphytic on algae or corals. Four or five chambers in each whorl. Undivided chambers, or with secondary partitions ( Valvulinella , Abadehella ). Aperture in the umbilicus, occasionally protected by a microaquarium. Wall thin dark microgranular, thick with the hyaline microgranular always as the outer layer and only located in the umbilicus, and not on the flanks. Late Tournaisian (MFZ6)–Changhsingian.

Remark: Globotetrataxis Brazhnikova, 1983 is a reproductive stage of Tetrataxis and a junior synonym of the latter.

Composition: Tetrataxis Ehrenberg, 1854 ; Abadehella Okimura & Ishii, 1975 ; Abadehellopsis Vachard in Krainer, Vachard & Schaffhauser, 2019; Endotaxis Bogush & Brazhnikova, 1983 ; Polytaxis Cushman & Waters, 1928 ; Pseudoendotaxis Vachard, Krainer & Schönlaub, 2018 ; Pseudotaxis Mamet, 1974 ; Valvulinella Schubert, 1908 .