Globorotalioidea
| Globorotaliacea | |
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| Superfamily: | Globorotaliacea Cushman, 1927
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see text | |
The Globorotaliacea (Globoroatioidea in some recent classifications) constitutes a superfamly of Cenozoic plantonic foraminifera that have trochospiral tests with rounded to carinate peripheries, the walls of which are of finely lamellar, perforate, of optically radial calcite, with an inner organic lining. The surface of these tests is smooth, lacking spines, but may be covered with pustles or pitted, and may have one or more large pores at the center. There is a single primary aperture that may be bordered by an imperforate lip, as well as possible supplementary apertures.
Families included in the Globorataliacea, in temporal sequence, as per Loeblich and Tappan, 1988, are the:
Eoglobigerinidae L. Paleocene (L. Danian)
Truncorotaliididae M. Paleocene to U.Eocene
Catapsydracidae Paleocene to Holocene
Globorotaliidae Paleocene to Holocene
Candeinidae M. Eocene to Holocene
Pulleniatinidae M. Miocene to Holocene
Earlier, Loeblich and Tappan, 1964, in the Treatise on Invertebrate Paleontology, Part C, in which foraminiferal taxa are ranked an Order rather than as a Class, the equivalinet Globorataliidae included only the subfamilies Globorotaliinae and Truncorotaliinae. The other four families now included in the Globorotaliacea are based on taxa that were included in the Globigerinidae.
References
- A. R. Loeblich & H. Tappan, 1964. Sarcodina Chiefly "Thecamoebians" and Foraminiferida; Treatise on Invertebrate Paleontology, Part C Protista 2.
- Loeblich & Tappan, 1988. Forminiferal Genera and their Classification. E-book