Planomalinidae

Globigerinelloides ferreolensis, from Scientific Ocean Drilling.

Belongs within: Rotaliida.

The Planomalinidae are a group of planispiral, planktonic forams known from the Lower Cretaceous to the Palaeocene (Loeblich & Tappan 1964).

Characters (from Loeblich & Tappan 1964): Coiling planisipiral, primary aperture equatorial, or symmetrically paired, umbilical portions of successive apertures remaining as relict secondary apertures.

<==Planomalinidae
    |--Planomalina Loeblich & Tappan 1946 LT64
    |    `--P. buxtorfi (Gandolfi 1942) (see below for synonymy) LT64
    |--Biglobigerinella Lalicker 1948 LT64
    |    `--*B. multispina Lalicker 1948 LT64
    |--Hastigerinoides Brönnimann 1952 [incl. Eohastigerinella Morozova 1957] LT64
    |    |--*H. alexanderi (Cushman 1931) [=Hastigerinella alexanderi] LT64
    |    `--H. watersi (Cushman 1931) [=Hastigerinella watersi, *Eohastigerinella watersi] LT64
    `--Globigerinelloides Cushman & Ten Dam 1948 LT64
         |--*G. algeriana Cushman & Ten Dam 1948 LT64
         |--G. asper M08
         |--G. blowi K79
         |--‘Anomalina’ breggiensis Gandolfi 1942 LT64 [=Ticinella (*Biticinella) breggiensis K79, LT64]
         |--G. eaglefordensis [incl. Planomalina caseyi] LT64
         |--G. ferreolensis K79
         |--G. gyroidinaeformis K79
         `--G. multispinatus Lalicker 1948 FM03

Planomalina buxtorfi (Gandolfi 1942) [=Planulina buxtorfi; incl. *Planomalina apsidostroba Loeblich & Tappan 1946] LT64

*Type species of generic name indicated

REFERENCES

[FM03] Friedrich, O., & K. J. S. Meier. 2003. Stable isotope indication for the cyst formation depth of Campanian/Maastrichtian calcareous dinoflagellates. Micropaleontology 49 (4): 375–380.

[K79] Kauffman, E. G. 1979. Cretaceous. In: Robison, R. A., & C. Teichert (eds) Treatise on Invertebrate Paleontology pt A. Introduction. Fossilisation (Taphonomy), Biogeography and Biostratigraphy pp. A418–A487. The Geological Society of America, Inc.: Boulder (Colorado), and The University of Kansas: Lawrence (Kansas).

[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. 2. The Geological Society of America and The University of Kansas Press.

[M08] McMillan, I. K. 2008. Reappraisal of foraminiferal assemblages of the Santonian–Campanian Mzamba Formation type section, and their correlation with the stratigraphic succession of the KwaZulu Basin. African Natural History 4: 25–34.