Ozawainellidae

Belongs within: Loeblichiidae.

The Ozawainellidae are a group of foraminiferans known from the upper Early Carboniferous to the Upper Permian (Loeblich & Tappan 1964).

Characters (Loeblich & Tappan 1964): Shell umbilicate to spherical or elongate, evolute in early forms, involute or irregularly uncoiled in later ones, axis of coiling short or long, first few volutions discoidal, others spherical to unevenly elongate; spirotheca composed of tectum with upper and lower tectoria in early forms but diaphanotheca occurring below tectum and above lower tectorium in later ones; septa plane; shell generally planispiral but may be asymmetrical, discoidal in at least part of shell with coiling axis in shortest diameter; tunnel singular.

<==Ozawainellidae [Ozawainellacea, Ozawainellinae]
    |--Ozawainella Thompson 1935LT64
    |    `--*O. angulata (Colani 1924) [=Fusulinella angulata]LT64
    |--Eostaffelloides Miklukho-Maclay 1959HW93
    |    `--*E. orientalis Miklukho-Maclay 1959R-CB96
    |--Kangvarella Saurin 1962HW93
    |    `--*K. irregularis Saurin 1962R-CB96
    `--Paramillerella Thompson 1951LT64
         |--*P. advena (Thompson 1944) [=Millerella advena]LT64
         |--P. amplaLT64
         |--P. circuliLT64
         `--P. pinguisLT64

*Type species of generic name indicated

References

[HW93] Hart, M. B., & C. L. Williams. 1993. Protozoa. In: Benton, M. J. (ed.) The Fossil Record 2 pp. 43–70. Chapman & Hall: London.

[LT64] Loeblich, A. R., Jr & H. Tappan. 1964. Sarcodina: chiefly “thecamoebians” and Foraminiferida. In: Moore, R. C. (ed.) Treatise on Invertebrate Paleontology pt C. Protista 2 vol. 1. The Geological Society of America and The University of Kansas Press.

[R-CB96] Rauzer-Chernousova, D. M., F. R. Bensh, M. V. Vdovenko, N. B. Gibshman, E. Y. Leven, O. A. Lipina, E. A. Reitlinger, M. N. Solovieva & I. O. Chedija. 1996. Spravočnik po Sistematike Foraminifer Paleozoâ (Èndotiroidy, Fuzulinoidy). Rossijskaâ Akademiâ Nauk, Geologičeskij Institut, Moskva “Nauka”.