Hemisphaerammininae

Hemisphaerammina bradyi, from Brady (1884).

Belongs within: Psammosphaerida.

The Hemisphaerammininae are a group of agglutinated Foraminifera known from the Ordovician to the present, in which the attached test is composed of one or more subglobular or hemispherical chambers (Loeblich & Tappan 1964a).

Hemisphaerammininae [Hemisphaeramminidae]
|--Nephrosphaera Kristan-Tollmann 1971HW93
|--Goatapitigba Narchi 1962LT64a
| `--*G. jurara Narchi 1962LT64b
|--Saccodendron Rhumbler 1935LT64a
| `--*S. heronalleni Rhumbler 1935 [incl. S. heronalleni f. latericium Rhumbler 1935]LT64a
|--Sagenina Chapman 1900 [=Arsagenum Rhumbler 1913, Sagenella Brady 1879 non Hall 1851]LT64a
| `--*S. frondescens (Brady 1879) [=*Sagenella frondescens, *Arsagenum frondescens]LT64a
|--Ammopemphix Loeblich 1952 [=Urnula Wiesner 1931 non Claparède & Lachmann 1857]LT64a
| |--*A. quadrupla (Wiesner 1931) [=*Urnula quadrupla]LT64a
| `--‘Urnula’ arcticaC40
|--Webbinelloidea Stewart & Lampe 1947 [incl. Sorosphaeroidea Stewart & Lampe 1947]LT64a
| |--*W. similis Stewart & Lampe 1947LT64a
| `--W. polygonia (Stewart & Lampe 1947) [=*Sorosphaeroidea polygonia]LT64a
`--Hemisphaerammina Loeblich & Tappan 1957 [incl. Fairliella Summerson 1958, Iridiella Shchedrina 1962]LT64a
|--*H. batalleri Loeblich & Tappan 1957LT64a
|--H. bradyiPH03
|--H. crassaLT64a
|--*Fairliella’ dicantha Summerson 1958LT64a
`--H. marisalbi (Shchedrina 1962) [=*Iridiella marisalbi]LT64a

*Type species of generic name indicated

References

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

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

[LT64a] Loeblich, A. R., Jr & H. Tappan. 1964a. 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.

[LT64b] Loeblich, A. R., Jr & H. Tappan. 1964b. Sarcodina: chiefly “thecamoebians” and Foraminiferida. In: Moore, R. C. (ed.) Treatise on Invertebrate Paleontology pt C. Protista 2 vol. 2. The Geological Society of America and The University of Kansas Press.

[PH03] Pawlowski, J., M. Holzmann, J. Fahrni & S. L. Richardson. 2003. Small subunit ribosomal DNA suggests that the xenophyophorean Syringammina corbicula is a foraminiferan. Journal of Eukaryotic Microbiology 50: 483–487.

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