CATALOG OF ORIGINAL DESCRIPTIONS: Globorotalia strabocella Loeblich and Tappan 1957

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 -> G -> Globorotalia -> Globorotalia strabocella
Other pages this level: << < G. reissi, G. renzi, G. rex, G. saginata, G. saheliana, G. salisburgensis, G. saphoae, G. scitula gigantea, G. scitula praescitula, G. scitula subscitula, G. scitula ventriosa, G. seigliei, G. sibaiyaensis, G. sinuososuturalis, G. spinulosa, G. strabocella, G. sturanii, G. subbotinae, G. subconica, G. suterae, G. tadjikistanensis, G. testarugosa, G. tetracamerata, G. thebaica, G. tortiva, G. tosaensis, G. traubi, G. tribulosa, G. trichotrocha, G. trinidadensis, G. troelseni> >>

Globorotalia strabocella

Citation: Globorotalia strabocella Loeblich and Tappan 1957
Rank: Species
Type locality: Types and occurrence: Holotype (USNM P5879) from the Nanafalia formation, south valley wall of Shoal Creek, 5.5 mUes southeast of Camden, along the Camden-Fatama road, Wilcox County, Alabama. Collected by A. R. Loeblich, Jr. The species also occurs rarely in the Vincentown formation. Nanafalia Fm., Alabama
Type specimens: P5879
Type repository: Washington; USNM

Linked specimens: USNM-5879

Current identification/main database link: Acarinina strabocella (Loeblich and Tappan 1957)


Original Description
Test free, of medium size, trochospiral, sides moderately convex, umbilical shoulder rounded, umbilicus broad and open, periphery broadly rounded, peripheral outline lobulate; chambers increasing gradually in size as added, of greater breadth than height, 4 per whorl in the early stages, increasing to 5 or 6 per whorl in the adult, early whorls somewhat elevated above the level of the final whorl, each successive chamber on the spiral side added somewhat below the level of that preceding, resulting in an imbricated appearance; sutures distinct, depressed, curved and oblique on the spiral side, radial and nearly straight on the umbilical side; wall calcareous, finely perforate, surface finely spinose, especially on the umbilical side; aperture an interiomarginal, extraumbilical-umbilical opening extending to the periphery.

Size: Holotype is 0.33 mm in greatest diameter.

Etymology: The specific name is from the Latin strabus, oblique, and cella, chamber, referring to the oblique attachment of successive chambers on the spiral side.

Extra details from original publication

Remarks: Globoroialia strabocella, new species, differs from G. apanthesma, new species, in the more elevated
early whorls and less truncate spiral side, broadly rounded instead of subacute periphery, more rounded
chambers and less curved sutures on the spiral side.

It differs from Globigerina mckannai White in being somewhat more compressed, with less globular chambers and a more extraumbilical aperture. G. mckannai may have been ancestral to the present species.

References:

Loeblich, A. R. & Tappan, H. (1957b). Planktonic foraminifera of Paleocene and early Eocene Age from the Gulf and Atlantic coastal plains. In, Loeblich, A. R. , Jr., Tappan, H., Beckmann, J. P., Bolli, H. M., Montanaro Gallitelli, E. & Troelsen, J. C. (eds) Studies in Foraminifera. U.S. National Museum Bulletin. 215: 173-198. gs V O

Olsson, R. K., Hemleben, C., Berggren, W. A. & Huber, B. T. (1999). Atlas of Paleocene Planktonic Foraminifera. Smithsonian Institution Press, Washington, DC. 1-252. gs


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Globorotalia strabocella compiled by the pforams@mikrotax project team viewed: 14-4-2021

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