CATALOG OF ORIGINAL DESCRIPTIONS: Globotruncana (Rugotruncana) gansseri dicarinata Pessagno 1960

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 (Rugotruncana) -> Globotruncana (Rugotruncana) gansseri dicarinata
Other pages this level: G. (Rugotruncana) gansseri dicarinata

Globotruncana (Rugotruncana) gansseri dicarinata

Citation: Globotruncana (Rugotruncana) gansseri dicarinata Pessagno 1960
Rank: sub-species
Type repository: Washington; USNM

Linked specimens: USNM-189996 USNM-189998

Current identification/main database link: Gansserina gansseri (Bolli, 1951)


Original Description
Test trochospirally coiled; dorsal side flat to mildly convex; ventral side highly convex. Umbilicus small. Chambers hemispherical in shape; five chambers in the last whorl. Coarse rugosities cover the early chambers and the first two or three chambers of the last whorl; rugosities often with a meridional pattern ventrally. Double-keel band along dorsal periphery, merging to form a single keel in chambers of last whorl; immature specimens usually with double keel throughout, sometimes with single keel on last chambers. Primary aperture interiomarginal, umbilical. Wall calcareous, finely perforate.

References:

Pessagno, E. A. (1960). Stratigraphy and micorpaleontology of the Cretaceous and lower Tertiary of Puerto Rico. Micropaleontology. 6(1): 87-110. gs


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Globotruncana (Rugotruncana) gansseri dicarinata compiled by the pforams@mikrotax project team viewed: 29-11-2020

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