CATALOG OF ORIGINAL DESCRIPTIONS: Globotruncana calcarata Cushman 1927

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 -> Globotruncana -> Globotruncana calcarata
Other pages this level: << < G. ansarii, G. appenninica, G. arabica, G. araratica, G. arca caribica, G. arca esnehensis, G. arcaformis, G. aspera, G. asymetrica, G. atlantica, G. aturica, G. azerbaidjanica, G. bahijae, G. bollii, G. bulloides naussi, G. calcarata, G. calcarata arcata, G. calcarata primitiva, G. calcarata retardata, G. caliciformis sarmientoi, G. caliciformis trinidadensis, G. campbelli, G. canaliculata ventricosa, G. carpathica, G. carteri, G. churchi, G. citae, G. coldreriensis, G. concavata cyrenaica, G. conica, G. conica plicata> >>

Globotruncana calcarata

Citation: Globotruncana calcarata Cushman 1927
Rank: Species
Type locality: Cut in G. C. and S. F. R. R., at N. edge of Farmerville, TX, collected by Dr. L. W. Stephenson.
Type age (chronostrat): Late Campanian
Type sample (& lithostrat): Pecan Gap Chalk,
Type specimens: 73419; Plate 23, figures 10 a, b
Type repository: Washington; USNM

Linked specimens: USNM-73419 USNM-6702

Current identification/main database link: Radotruncana calcarata (Cushman, 1927)


Original Description
Test trochoid, umbilicate, dorsal and ventral sides nearly parallel, the sides angled, obliquely truncate; chambers 4 or 5 in the final whorl, each with a stout peripheral spine, the early ones on the dorsal side oblique and marked by a bead-like ornamentation, ventrally radial, slightly depressed; aperture opening onto the umbilical region.

Size: Diameter with spines 0.40 mm.

Extra details from original publication
This is related to Globotruncana arca (Cushman) but is distinct in the large, well developed peripheral spines. The species also occurs in the Mendez Shales of the Tampico Embayment, Mexico.

References:

Cushman, J. A. (1927b). New and interesting foraminifera from Mexico and Texas. Contributions from the Cushman Laboratory for Foraminiferal Research. 3(2): 111-119. gs V O


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Globotruncana calcarata compiled by the pforams@mikrotax project team viewed: 30-7-2021

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