CATALOG OF ORIGINAL DESCRIPTIONS: Globorotalia angulata abundocamerata Bolli 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 angulata abundocamerata
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, G. australiformis, G. avanensis, G. barisanensis, G. bella, > >>

Globorotalia angulata abundocamerata

Citation: Globorotalia angulata abundocamerata Bolli 1957
Rank: sub-species
Type locality: Locality: Holotype (USNM P5050) from Trmidad Leaseholds, Ltd., well Guayaguayare 159, Trinidad (coordinates N:151361 links; E:554095 links), sample from core 4,524-36 feet (TLL 232705).
Type age: Stratigraphic range: Globorotalia pusilla pusilla zone to lower part of Globorotalia pseudomenardii zone.
Type sample and level: Lizard Springs formation.
Holotype Repository: Washington; USNM
Type & figured specimens: USNM P5050

Linked specimens: USNM-5050

Current identification/main database link: Morozovella conicotruncata (Subbotina 1947)


Original Description
Shape of test very low trochospiral, spiral side almost flat, inner whorl occasionally slightly raised; umbilical
side strongly convex; equatorial periphery slightly lobate, almost circular; axial periphery subacute to
acute without distinct keel, Wall calcareous, perforate, surface finely spinose. Chambers subangular, inflated;
14-18, arranged in 2-2 1/4 whorls, the 6-7 chambers of the last whorl increasing slowly in size. Sutures on
spiral side curved, slightly depressed; on umbilical side radial, depressed. Umbilicus narrow, deep, open.
Aperture a narrow slit; interiomarginal, extraumbilical-umbilical. Coiling random.

Size: Largest diameter of holotype 0.4 mm.

Extra details from original publication
Remarks: G. angulata abundocamerata Bolli, new subspecies, is a multichambered form of G. angulata
(White) with a slightly different stratigraphic range.

References:

Bolli, H. M. (1957d). The genera Globigerina and Globorotalia in the Paleocene-Lower Eocene Lizard Springs Formation of Trinidad. 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: 61-82. gs


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Globorotalia angulata abundocamerata compiled by the pforams@mikrotax project team viewed: 18-2-2020

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