Fischerinidae

Cornuspira involvens, from here.

Belongs within: Miliolida.
Contains: Hemigordiopsidae.

The Fischerinidae are a group of porcelaneous Foraminifera known from the Carboniferous to the present, in which the test is undivided after the proloculus (Loeblich & Tappan 1964).

Characters (from Loeblich & Tappan 1964): Test free or attached, proloculus followed by undivided tubular or spreading second chamber; wall calcareous, porcelaneous; aperture terminal, rounded or slitlike.

<==<==Fischerinidae [Cornuspirida, Cornuspiridae, Cornuspiridea, Cornuspirideae]
    |--Fischerininae [Planispirinellinae, Trisegmentininae] LT64
    |    |--Fischerinella Loeblich & Tappan 1962 LT64
    |    |    `--*F. helix (Heron-Allen & Earland 1915) [=Fischerina helix] LT64
    |    |--Nautiloculina Mohler 1938 LT64
    |    |    `--*N. oolithica Mohler 1938 LT64
    |    |--Planispirinella Wiesner 1931 LT64
    |    |    `--*P. exigua (Brady 1879) LT64 [=Hauerina exigua LT64, Planispirina exigua C40]
    |    `--Fischerina Terquem 1878 [incl. Planispirina Seguenza 1880, Trisegmentina Wiesner 1920] LT64
    |         |--*F. rhodiensis Terquem 1878 LT64
    |         |--F. communis (Seguenza 1880) [=*Planispirina communis] LT64
    |         `--F. compressa (Wiesner 1931) (see below for synonymy) LT64
    |--Calcivertellinae LT64
    |    |--Carixia Macfadyen 1941 LT64
    |    |    `--*C. langi Macfadyen 1941 LT64
    |    |--Planiinvoluta Leischner 1961 LT64
    |    |    `--*P. carinata Leischner 1961 LT64
    |    |--Plummerinella Cushman & Waters 1928 LT64
    |    |    `--*P. complexa Cushman & Waters 1928 LT64
    |    |--Calcivertella Cushman & Waters 1928 LT64
    |    |    `--*C. adherens Cushman & Waters 1928 LT64
    |    `--Calcitornella Cushman & Waters 1928 [incl. Apterrinella Cushman & Waters 1928] LT64
    |         |--*C. elongata Cushman & Waters 1928 LT64
    |         |--C. grahamensis (Harlton 1928) [=Tolypammina grahamensis, *Apterrinella grahamensis] LT64
    |         |--C. heathi C40
    |         `--C. stephensi [=Nubecularia stephensi] F71
    `--Cyclogyrinae [Arcornuspirinia, Cornuspirinae, Cornuspirininae] LT64
         |  i. s.: Flectospira Crespin & Belford 1957 LT64
         |           `--*F. prima Crespin & Belford 1957 LT64
         |         Meandrospira Loeblich & Tappan 1946 [incl. Streblospira Crespin & Belford 1957] LT64
         |           |--*M. washitensis Loeblich & Tappan 1946 LT64
         |           `--M. meandrina (Crespin & Belford 1957) [=*Streblospira meandrina] LT64
         |--Orthovertella Cushman & Waters 1928 C40
         |    `--*O. protea Cushman & Waters 1928 LT64
         |--Rectocornuspira Warthin 1930 C40
         |    `--*R. lituiformis Warthin 1930 LT64
         |--Vidalina Schlumberger 1900 C40, LT64 [=Arvidaloum Rhumbler 1913 LT64]
         |    `--*V. hispanica Schlumberger 1900 [=*Arvidaloum hispanicum] LT64
         |--+--Hemigordiopsidae C40
         |  `--Gordiospira Heron-Allen & Earland 1932 C40
         |       `--*G. fragilis Heron-Allen & Earland 1932 C40
         |--+--Cornuspirella Cushman 1928 C40
         |  |    `--*C. diffusa (Heron-Allen & Earland 1913) [=Cornuspira diffusa] LT64
         |  `--Cornuspiroides Cushman 1928 C40
         |       `--*C. striolata (Brady in Tizard & Murray 1882) [=Cornuspira striolata] LT64
         `--Cyclogyra Wood 1842 LT64 (see below for synonymy)
              |--*C. multiplex Wood 1842 LT64
              |--‘Orbis’ foliaceus Philippi 1844 [=*Arcornuspirum foliaceum, *Cornuspira foliacea] LT64
              |--‘Cornuspira’ acicularis S05
              |--‘*Cornicocornuspira’ conica Marie 1961 LT64
              |--‘Cornuspira’ involvens C40
              |--C. planorbis (Schultze 1854) [=Cornuspira planorbis] LT64
              `--‘Cornuspira’ thompsoni C40

Cyclogyra Wood 1842 LT64 [incl. Arcornuspirum Rhumbler 1913 LT64, Conicocornuspira Marie in Deleau & Marie 1961 LT64, Cornuspira Schultze 1854 C40]

Fischerina compressa (Wiesner 1931) [=*Trisegmentina compressa; incl. Hauerina compressa Sidebottom 1904 non d’Orbigny 1846, T. sidebottomi Cushman 1933] LT64

*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).

[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.

[S05] Semeniuk, T. A. 2005. Fossil foraminiferal assemblages from Pleistocene seagrass-bank deposits of the southern Perth Basin, Western Australia, and their palaeotemperature implications. Journal of the Royal Society of Western Australia 88 (4): 177–190.