Cyclamminidae Marie, 1941

Sun, Qi & Schlagintweit, Felix, 2024, First Record Of Upper Cretaceous (Campanian?) Larger Benthic Foraminifera From The Yigeziya Formation Of The Southwestern Tarim Basin, China, Acta Palaeontologica Romaniae 20 (2), pp. 131-144 : 140

Family Cyclamminidae Marie, 1941

Cyclamminidae indet. ( Pseudocyclammina sp. )

Fig. 7q

Remarks: The single oblique section not showing test morphology and further internal details does not allow for further taxonomic comments and is herein treated in open nomenclature. The alveolar wall structure of the Chinese specimen is well discernible.

Figures

Fig. 7. Orbitolinidae indet. (a?, b-g), Nezzazatinella cf. picardi (Henson) (h-k), Cuneolina cf. parva Henson (l, r), Tetrataxiella? floriforma Schlagintweit & Sanders (m-n), rotaliids (Suturina? sp.) (o-p), cyclamminid gen. et sp. indet. (q) from the Campanian? Yigeziya Formation of the SW Tarim Basin, China. a. Slightly oblique axial section. b, c. Oblique sections. d. Tangential section showing the presence of a single rafter in the marginal zone. e-g. Tangential sections passing through the megalospheric biloculine embryo (detail in e) within the early trochospire. h, j-k. Oblique sections. i. Tranverse section through the last whorl of a juvenile specimen. l. Slightly oblique transverse section of the juvenile part. r. Slightly oblique longitudinal section perpendicular to the plane of biseriality. m Longitudinal section, slightly oblique. n. Oblique transverse section. o-q. Oblique sections. Abbreviations: deu = deuteroconch, pr = protoconch, r = rafter. Dotted line in e: Assumed boundary between protoconch and deuteroconch.