Rotaliporidae

Hedbergella delrioensis, from here.

Belongs within: Globorotaliida.

The Rotaliporidae are a group of planktonic Foraminifera known from the Cretaceous. In members of the subfamily Hedbergellinae, the test has a single primary aperture only, commonly with a prominent apertural lip. In the Rotaliporinae, there are also secondary sutural apertures present on the umbilical side (Loeblich & Tappan 1964b).

Characters (from Loeblich & Tappan 1964b): Coiling trochospiral; primary aperture extraumbilical-umbilical, with relatively prominent lip; may have secondary sutural apertures on umbilical side opening into posterior margin of chambers.

Rotaliporidae
|--Helvetoglobotruncana Reiss 1957LT64b [HelvetoglobotruncaninaeM13]
| `--*H. helvetica (Bolli 1945) [=Globotruncana helvetica]LT64b
|--Clavihedbergella Banner & Blow 1959HW93
| `--*C. subcretacea (Tappan 1943) (see below for synonymy)LT64b
|--Praeglobotruncana Bermúdez 1952LT64b [incl. Rotundina Subbotina 1953LT64b; RotundininaeM13]
| |--*P. delrioensis (Plummer 1931) [=Globorotalia delrioensis]LT64b
| `--P. stephani (Gandolfi 1942) [=Globotruncana stephani, *Rotundina stephani]LT64b
|--Ticinella Reichel 1950LT64b [TicinellinaeM13]
| |--*T. roberti (Gandolfi 1942) [=Anomalina roberti, Globotruncana (*Ticinella) roberti]LT64b
| |--T. bejaouaensisK79
| |--T. praeticinensisK79
| `--T. primulaK79
`--Rotalipora Brotzen 1942 [incl. Thalmanninella Sigal 1948; Rotaliporinae]LT64b
|--R. cushmani (Morrow 1934) [=Globorotalia cushmani; incl. *R. turonica Brotzen 1942]LT64b
|--R. appenninicaLT64a [=Thalmanninella appenninicaBL79]
|--R. evolutaS02
|--R. gandolfiiK79
|--R. greenhornensis (Morrow 1934) [=Globorotalia greenhornensis; incl. *Thalmanninella brotzeni Sigal 1948]LT64b
|--R. reicheliK79
`--R. ticinensisK79 [=Thalmanninella ticinensisBL79]

*Clavihedbergella subcretacea (Tappan 1943) [=Hastigerinella subcretacea, Praeglobotruncana (*Clavihedbergella) subcretacea]LT64b

*Type species of generic name indicated

References

[BL79] Basov, V. A., B. G. Lopatin, I. S. Gramberg, A. I. Danjushevskaya, V. Ya. Kaban’kov, V. M. Lazurkin & D. K. Patrunov. 1979. Lower Cretaceous lithostratigraphy near Galicia Bank. Initial Reports of the Deep Sea Drilling Project 47: 683–717.

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

[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).

[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.

[M13] Mikhalevich, V. I. 2013. New insight into the systematics and evolution of the Foraminifera. Micropaleontology 59 (6): 493–527.

[S02] Scott, R. W. 2002. Albian caprinid rudists from Texas re-evaluated. Journal of Paleontology 76 (3): 408–423.

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