CATALOG OF ORIGINAL DESCRIPTIONS: Globorotalia almadenensis Cushman and Todd 1948

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 almadenensis
Other pages this level: G. acostaensis, G. acostaensis trochoidea, G. acrostoma, G. acrostoma partimlabiata, G. acutispira, G. adamantea, G. aequa bullata, G. africana, G. akersi, G. alamedillensis, G. albeari, G. almadenensis, G. amuria, G. andalusiana, G. anfracta, G. angulata abundocamerata, G. angulata kubanensis, G. angulata praepentacamerata, G. apanthesma, G. apertura, G. aragonensis, G. aragonensis araratica, G. aragonensis caucasica, G. aragonensis incisimarginata, G. aragonensis twisselmanni, G. archeomenardii, G. armenica> >>

Globorotalia almadenensis

Citation: Globorotalia almadenensis Cushman and Todd 1948
Rank: Species
Type locality: road cut, SW. ¼ sec. 24, T. 8 S., R. 1 W., Mt. Diablo meridian, New Almaden district, Santa Clara Co., Calif.
Type specimens: Pl. 16, fig. 24; Holotype (Cushman Coll. No. 58514)
Type repository: Washington; USNM

Linked specimens: USNM-370098 USNM-58515 USNM-58514

Current identification/main database link: Thalmanninella appenninica (Renz, 1936)

Original Description
Test compressed, composed of about 2 whorls, flattened dorsally, inner ends of chambers slightly elevated ventrally, periphery sharply angled, slightly keeled, entire in the young, becoming progressively more lobulated as growth proceeds; chambers few, distinct, 6 or 7 in the last-formed whorl, rapidly increasing in size as added; sutures distinct, radial and depressed on the ventral side, flush with the surface, limbate, and curved on the dorsal side; wall smooth, appearing finely granular; aperture an arched slit under the edge of the last-formed chamber, extending from the umbilicus to the periphery.

Extra details from original publication
This species differs from G. californica n. sp. in its much more flattened test and more rapid increase in size of chambers. It occurs commonly.


Cushman, J. A. & Todd, R. (1948). A foraminiferal fauna from the New Almaden district, California. Contributions from the Cushman Laboratory for Foraminiferal Research. 24: 90-98. gs V O


Globorotalia almadenensis compiled by the pforams@mikrotax project team viewed: 15-5-2021

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