CATALOG OF ORIGINAL DESCRIPTIONS: Globigerina macrastoma Copeland 1964

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 -> Globigerina -> Globigerina macrastoma
Other pages this level: << < G. kelleri, G. khadumica, G. kochi, G. kondoi, G. konkensis, G. kozlowskii, G. krosniensis, G. kugleri, G. kyushuensis, G. labiacrassata, G. linaperta, G. linaperta transdanubica, G. linaperta turgida, G. loetterli, G. lozanoi, G. macrastoma, G. marialuisae, G. mckannai, G. medizzai, G. megastoma, G. megastoma cariacoensis, G. mexicana, G. microfoliata, G. micropora, G. microstoma, G. microstoma opsionepenthoides, G. minutula, G. moskvini, G. multiloba, G. nepenthes, G. nepenthes delicatula, > >>

Globigerina macrastoma

Citation: Globigerina macrastoma Copeland 1964
Rank: species
Type locality: Natural Well and Barwick farm; Duplin County, North Carolina
Type age: Upper Miocene
Type sample and level: Duplin marl
Holotype Repository: Chapel Hill; Paleontology Laboratory of the University of North Carolina, Department of Geology
Type & figured specimens: Pl. 41, figs. 5a-c; U.N.C. Cat. No. 3472.

Current identification/main database link:


Original Description
Test thick, higher than wide, consisting of three whorls in a low trochospiral arrangement; chambers inflated, globular, rapidly enlarging, about 14 in number, five in the last whorl, closely app ressed; sutures radial, slightly depressed on the dorsal side, strongly depressed ventrally; wall medium perforate, cancellate, forming irregularly shaped depressions; aperture umbilical-extraumbilical, a large, elongate, semicircular opening bordered by a faint lip.

Size: Height, 0.36 mm.; width , 0.30 mm.; thickness, 0.27 mm.

Extra details from original publication
The amount of variation in this species is slight. The forms range from 0.27 mm.-0.39 mm. in height with from four-five chambers in the outer whorl. In a few specimens the lip becomes more pronounced.

Globigerina hexagona Natland (1938, Bull. Scripps Inst. Oceanography, vol. 4, No. 5, p. 149, pl. 7, f ig. l a-c) differs in the more strongly cancellate test and the low arched aperture.

Editors' Notes
The name is consistently given as macrastoma (not macrostoma), so this clearly was the inntended spelling. [editor's comment - JRY 2018]

References:

Copeland, C. W. (1964). Eocene and Miocene foraminifera from two localities in Duplin County, North Carolina. Bulletins of American Paleontology. 47: 209-324. gs


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Globigerina macrastoma compiled by the pforams@mikrotax project team viewed: 19-9-2020

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Short stable page link: http://mikrotax.org/pforams/index.php?id=130551 Go to Archive.is to create a permanent copy of this page - citation notes



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