Schubertellidae

Schematic diagram of Codonofusiella, from here (see link for legend).

Belongs within: Loeblichiidae.

The Schubertellidae are a group of minute fusulinids known from the Upper Carboniferous and Permian (Loeblich & Tappan 1964).

Characters (from Loeblich & Tappan 1964, as Schubertellinae): Shell minute, elongate-fusiform, ellipsoidal or irregular in shape, first few volutions coiled at large angle to outer ones; spirotheca composed of (1) tectum with upper and lower tectoria or (2) tectum with diaphanotheca and tectoria, or (3) tectum with lower layer only, or (4) consisting of single thin layer; septa plane in primitive forms, fluted in end zones of more advanced forms, and fluted throughout length of shell in some advanced members; tunnel singular; chomata small or distinct.

<==Schubertellidae [Boultoniinae, Schubertellinae, Schubertellinidae, Schubertellininae]
    |--Dunbarula Ciry 1948 LT64
    |    `--*D. mathieui Ciry 1948 LT64
    |--Mesoschubertella Kanuma & Sakagami 1957 LT64
    |    `--*M. thompsoni Sakagami in Kanuma & Sakagami 1957 LT64
    |--Minojapanella Fujimoto & Kanuma 1953 LT64
    |    `--*M. elongata Fujimoto & Kanuma 1953 LT64
    |--Paradoxiella Skinner & Wilde 1955 LT64
    |    `--*P. pratti Skinner & Wilde 1955 LT64
    |--Nanlingella Rui & Sheng 1981 K04
    |    |--N. meridionalis K04
    |    `--N. simplex K04
    |--Boultonia Lee 1927 LT64
    |    |--*B. willsi Lee 1927 LT64
    |    `--B. guadelupensis LT64
    |--Paraboultonia Skinner & Wilde 1954 [incl. Tavajzites Tumanskaya 1953] LT64
    |    |--*P. splendens Skinner & Wilde 1954 LT64
    |    `--P. delicata (Colani 1924) [=Fusulina pseudoprisca var. delicata, *Tavajzites delicata] LT64
    |--Eoschubertella Thompson 1937 LT64
    |    |--*E. lata (Lee & Chen in Lee, Chen & Chu 1930) [=Schubertella lata] LT64
    |    `--E. gallowayi LT64
    |--Fusiella Lee & Chen in Lee, Chen & Chu 1930 LT64
    |    |--*F. typica Lee & Chen in Lee, Chen & Chu 1930 LT64
    |    `--F. primaeva C40
    |--Schubertella Staff & Wedekind 1910 [incl. Depratella Ozawa 1928] LT64
    |    |--*S. transitoria Staff & Wedekind 1910 LT64
    |    |--S. giraudi (Deprat 1915) [=Neofusulinella giraudi, *Depratella giraudi] LT64
    |    |--S. kingi LT64
    |    `--S. mullerriedi Thompson & Miller 1944 LT64
    `--Codonofusiella Dunbar & Skinner 1937 LT64
         |--*C. paradoxica Dunbar & Skinner 1937 LT64
         |--C. asiatica DX84
         |--C. erki DX84
         |--C. extensa DX84
         |--C. lui DX84
         |--C. plana DX84
         |--C. primigenia DX84
         |--C. protolui Xia in Ding, Xia et al. 1984 DX84
         |--C. pseudoextensa Xia in Ding, Xia et al. 1984 DX84
         |--C. schubertellinoides VH01
         `--C. simplicata Xia in Ding, Xia et al. 1984 DX84

*Type species of generic name indicated

REFERENCES

[C40] Cushman, J. A. 1940. Foraminifera: Their classification and economic use 3^rd ed. Harvard University Press: Cambridge (Massachusetts).

[DX84] Ding Y., Xia G., Duan C., Li W., Liu X. & Liang Z. 1984. Study on the early Permian stratigraphy and fauna in Zhesi district, Nei Mongol Zizhiqu (Inner Mongolia). Bulletin Tianjin Institure Geol. Min. Res. 10.

[K04] Kobayashi, F. 2004. Late Permian foraminifers from the Limestone Block in the Southern Chichibu Terrane of west Shikoku, SW Japan. Journal of Paleontology 78 (1): 62–70.

[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.

[VH01] Vachard, D., M. Hauser, R. Martini, L. Zaninetti, A. Matter & T. Peters. 2001. New algae and problematica of algal affinity from the Permian of the Aseelah Unit of the Batain Plain (East Oman). Geobios 34 (4): 375–404.