CATALOG OF ORIGINAL DESCRIPTIONS: Beella discors McCulloch 1977

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.


Higher levels: pf_cat -> B -> Beella -> Beella discors
Other pages this level: B. chathamensis, B. discors, B. guadalupensis,

Beella discors

Citation: Beella discors McCulloch 1977
Rank: species
Type locality: In 860-1150 fms. on Velero Station 6000, 11°54N, 165°02E, off Bikini Atoll, South Pacific.
Type level: Recent
Holotype Repository: Los Angeles, Univ Southern California, Allan Hancock Foundation
Holotype number: holotype (fig. 15), AHF 2559; paratype (figs. 14, 16), AHF 2559a.

Current identification/main database link:


Original Description: Test free, calcareous, subcircular in contour, weakly trochospiral, lobulate, periphery rounded; wall minutely hispid punctate opaque with a rather smooth ap pear ance; about two whorls of globose to elon gate ovate in flated ones initial globose ones min ute; last formed whorl al most planispiral in organization for last formed whorl; sutures depressed radiate; aperture extraumbilical umbilical. 

Holotype size: Holotype (fig. 15).785 x.415mm; paratype (figs. 14, 16).18 x.79 x.33mm.

Extra details from original publication: The present forms seem to be closer to Globigerina digitata Brady, 1879, from Ki Islands off Tahiti Brady (1884) than to any other taxon. Cushman, Todd, and Post (1954) illustrated two forms with somewhat different chambers as Hastigerinella digitata (Rhumbler 1911). Genus Beella Banner and Blow, 1960, type species Globigerina digitata Brady, 1879, as illustrated by Loeblich and Tappan (1964 p C669-670, fig. 537/1) hypotype Atlantic Ocean, does not appear to be the same species. The initial unit of chambers here is not close to typical globigerine organization of chambers but the initial chambers of their Atlantic form seem to be more so. With more study the differences become more important.

References:

Banner, F.T. & Blow, W.H., (1960). Some primary types of species belonging to the superfamily Globigerinaceae. Contributions from the Cushman Foundation for Foraminiferal Research, 11: 1-41.

Brady, H.B., (1879). Notes on some of the reticularian Rhizopoda of the "Challenger" expedition. I.- On new or little known arenaceous types. Quarterly Journal of Microscopical Science, 19: 20-63.

Brady, H.B., (1884). Report on the Foraminifera dredged by H.M.S. Challenger, during the years 1873-1876. Rep. Sci. Results H.M.S. Challenger 1873-6, 9 (Zoology): 1-814.

Cushman et al 1954 [sorry, not in our bibliography yet]

Loeblich, A.R., Jr. & Tappan, H., (1964). Sarcodina, Chiefly "Thecamoebians" and Foraminiferida. In: Moore, R.C. (Editor), Treatise on Invertebrate Paleontology, Protista 2, pt. C. University of Kansas Press, Lawrence, pp. 900 p.

Loeblich, A.R. & Tappan, H., (1964). Sarcodina, chiefly "Thecamoebians" and Foraminiferida. Treatise on Invertebrate Paleontology, Protista 2, Pt. C. University of Kansas Press, 900 pp.

McCulloch, I.A., (1977). Qualitative observations on Recent foraminiferal tests with emphasis on the eastern Pacific (3 vols). University of Southern California, Los Angeles.


Catalog entry for Beella discors compiled by the pforams@mikrotax project team viewed: 29-6-2017

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AphiaID: 730484 Nomenclatural data on WoRMS

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