This page provides data from the catalog of type descriptions. The catalog is sorted alphabetically. Use the current identification link to go back to the main database.
|Clavatorella nicobarensis Srinivasan & Kennett 1974|
= Protentella nicobarensis
|Clavatorella paleocenica de Klasz and de Klasz 1986|
|Clavatorella salumensis Imam 1998|
Current identification/main database link: Clavatorella Blow 1965
See also: Globorotalia (Clavatorella) - also used a sub-genus;
Extra details from original publication
Recently, Lipps (1964) erected the genus Protentella (type species Protentella prolixa Lipps, 1964) for forms with radially elongate chambers, a planispirally coiled test in the adult and with an equatorially symmetrical aperture. This genus seems, without doubt, to be a junior synonym of the genus Bolliella Banner and Blow, 1960. Indeed, the type species of Protentella, i.e., P. prolixa Lipps, may well prove to be a junior synonym of Bolliella adamsi Banner and Blow, the type species of Bolliella. Lipps (1964) ascribed the age of his species to the "Burdigalian Globorotalia fohsi fohsi Zone," but this is strongly doubted here since the form illustrated by him as Turborotalia mayeri (Lipps, 1964, pl. 3, fig. 5a-c; not fig. 4a- c) is most probably Turborotalia acostaensis (Blow). Further, Lipps placed "Globigerinoides" glomerosus glomerosus Blow and "G." glomerosus circularis Blow into synonymy with Candorbulina universa Jedlitschka, but Blow (1956) has previously discussed the reasons for separating "Globigerinoides" glomerosus s. l. from Candorbulina universa and the reasons for referring the latter to Orbulina suturalis Bronnimann. Orbulina suturalis ranges to the Recent, and the forms illustated by Lipps (1964, pl. 2, figs. 6- 7) can and do occur in Recent deposits. In passing, it is noted that Lipps states that his figure 3 (Lipps 1964, p. 121) is after Blow, 1956, text-figure 2, no. 16; this is quite incorrect, as comparison with the literature shows. The present writer believes that the age of the forms recorded by Lipps from the upper Luisian of California could be as young as post-Miocene.
Clavatorella is the Neogene analogue of the Cretaceous praeglobotruncanid genus Clavihedbergella Banner and Blow, 1959, but differs from it by not having a porticus or well-marked relict apertures (Banner and Blow, 1959).
Globigerina radians Egger, 1893, described from the Recent seas, also appears to belong to Clavatorella. The writer has also observed a number of yet undescribed Neogene forms which seem to be referable to this genus.
Clavatorella compiled by the pforams@mikrotax project team viewed: 30-1-2023
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