Catalog - Globorotalia nicoli <title>Catalog - Globorotalia nicoli

CATALOG OF ORIGINAL DESCRIPTIONS: Globorotalia nicoli Martin 1943

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 nicoli
Other pages this level: << < G. miozea conoidea, G. miozea rifensis, G. miozea sphericomiozea, G. miroensis, G. mohleri, G. monmouthensis, G. multiloculata, G. munda, G. nagappai, G. nana pseudocontinuosa, G. nartanensis, G. naussi, G. neominutissima, G. nicobarica, G. nicolae, G. nicoli, G. obesa, G. occlusa, G. opima continuosa, G. opima nana, G. opima opima, G. orientalis, G. oscitans, G. palmerae, G. paniae, G. pentacamerata, G. perclara, G. perconigi, G. perforataminuta, G. pertenuis, G. petaliformis> >>

Globorotalia nicoli

Citation: Globorotalia nicoli Martin 1943
Rank: species
Described on page(s) : 27
Type specimens: Pl. 7, fig. 3a-c, holotype, X 128.Fig. 3a, dorsal view; b, ventral view; c, peripheral view. Holotype deposited in the Paleontological Type Collection, Stanford University, Calif.; no. 7401. Paratypes deposited in the collections of the U. S. National Museum, Washington, D. C. (no. 559458); the University of California, Berkeley, Calif, (no. 35063); the American Museum of Natural History, New York, N. Y. (no.MT-1018); the Cushman Laboratory for Foraminiferal Research, Sharon, Mass. (no.38972); the California Academy of Sciences, San Francisco,Calif.(no.7880);and the Paleontological Research Institution, Ithaca, N. Y.
Type sample (& lithostrat): Sample I-S4+8, Lodo formation,
Type age (chronostrat): Early Eocene
Type locality: Lodo Gulch, Panoche Quadrangle, Fresno County, California.
Type repository: Stanford; Paleontological Type Collection, Stanford University, Calif.

Linked specimens: USNM-559458

Current identification:


Original Description

"Test rotaliform, nearly equally biconvex; wall calcareous, finely perforate,ornamented with fine spinose protuberances, giving a granular appearance; periphery subangular, lobulate, not keeled; all chambers visible dorsally, only last whorl of four visible ventrally; chambers inflated, increasing gradually in size as added; dorsal sutures strongly curved, nearly tangential, depressed; ventral sutures nearly straight, depressed; aperture a small, labiate, crescentic opening extending from umbilicus about one-third of way toward periphery along base of apertural face of last chamber.

Size:
Maximum diameter 0.23 mm.;base of apertural face of last chamber, minimum diameter 0.18 mm.; maximum thickness 0.13 mm.

Etymology:
Named in honor of David Nicol.

Extra details from original publication
Remarks.-This small, common species resembles Globorotalia wilcoxensis Cushman and Ponton (1932) but differs in being convex on the dorsal side, instead of flat, and in having dorsally narrower chambers and more strongly curved sutures.

Range.-Samples I-X8 through I-S22+7 - i.e. from about 135 feet above the Moreno-Lodo contact to about 10 feet above the base of the Domengine formation (Eocene). 

Editors' Notes

References:

Martin, L. T. (1943). Eocene foraminifera from the type Lodo Formation, Fresno County, California. Stanford University Publications, Geological Sciences. 3(3): 1-35. gs


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Globorotalia nicoli compiled by the pforams@mikrotax project team viewed: 27-1-2023

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