Catalog - Globotruncana stuarti parva Catalog - Globotruncana stuarti parva

CATALOG OF ORIGINAL DESCRIPTIONS: Globotruncana stuarti parva Gandolfi 1955

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 stuarti parva
Other pages this level: << < G. roddai, G. rosetta insignis, G. rosetta pettersi, G. rugosa, G. rugosa subrugosa, G. sahakianae, G. samuriensis, G. schneegansi, G. semsalensis, G. sharawnaensis, G. sigmoconcavata, G. smithi, G. stephani, G. stephani turbinata, G. stephensoni, G. stuarti parva, G. sudrensis, G. sudrensis parallela, G. tarfayaensis, G. thalmanni thalmanni, G. ticinensis, G. torensis, G. tricarinata colombiana, G. tricarinata desioi, G. undulata, G. verrucosa, G. vridhachalensis, G. walfischensis, G. wiedenmayeri, G. wiedenmayeri magdalenaensis, G. wilsoni> >>

Globotruncana stuarti parva

Citation: Globotruncana stuarti parva Gandolfi 1955
Taxonomic rank: sub-species
Type specimens: PI. .5. fig. 7a-c ; 20855: type description p.65
Type sample (& lithostrat): Km. 92 section, S. 5597.
Type age (chronostrat): Campanian-Maastrichtian
Type locality: A section near Km. 92 on the Fonseca-Riohacha road, Rancheria Valley, 40 km. north of Fonseca, NE part of the State of Magdalena, northern Colombia.
Type repository: Ithaca, New York; Paleontological Research Institution

Current identification/main database link: Globotruncanita stuarti (de Lapparent, 1918)


Original Description

Test considerably smaller than the previous one, chambers more rapidly increasing in size and becoming larger than in Glt. stuarti stuarti (five in the last whorl). The sutures are, in the previous form, less sharply bent or more gently curved (rosetta type) in the last stages.

Size:
Dimensions of holotype. Width 0.72 x 0.70 mm.; thickness, 0.37 mm.

Extra details from original publication
Remarks.—The observation of the umbilical cavity was poor, but nevertheless the lips are apparently less arched and developed than in the typical form. It is not possible from our material to judge which of the two forms may be more primitive. At any rate this subspecies appears to represent a special phylogenetic tendency of the species toward forms with fewer chambers in the last whorl, as seen in Glt. tricarinata colombiana and Glt. fornicata cesarensis.

References:

Gandolfi, R. (1955). The genus Globotruncana in northeastern Colombia. Bulletins of American Paleontology. 36: 1-118. gs


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Globotruncana stuarti parva compiled by the pforams@mikrotax project team viewed: 11-2-2025

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