Catalog - Globorotalia puncticulata padana Catalog - Globorotalia puncticulata padana

CATALOG OF ORIGINAL DESCRIPTIONS: Globorotalia puncticulata padana Dondi & Papetti 1968

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 puncticulata padana
Other pages this level: << < G. praemenardii, G. praemiocenica, G. praenartanensis, G. praepseudomenardii, G. pseudochapmani, G. pseudocrassa, G. pseudomayeri, G. pseudomenardii, G. pseudomiocenica, G. pseudopachyderma, G. pseudoscitula, G. pseudoscitula elongata, G. pseudospinulosa, G. pshadae, G. pumilio, G. puncticulata padana, G. puncticulata puncticuloides, G. pusilla laevigata, G. pusilla mediterranica, G. pusilla pusilla, G. quadraria, G. quadrata, G. quetra, G. quinifalcata, G. redbankensis, G. reissi, G. renzi, G. rex, G. saginata, G. saheliana, G. salisburgensis> >>

Globorotalia puncticulata padana

Citation: Globorotalia puncticulata padana Dondi & Papetti 1968
taxonomic rank: sub-species
Type specimens: holotype (fig. 1), no. :2260; paratypes (figs. 2-4), no. 2261.
Type age (chronostrat): Pliocene. Occurs in the Lower Pliocene, upper part of the Globorotalia puncticulata Zone and the Globorotalia bono!liensis Zone, and the Middle Pliocene, Globorotalia hirsuta aemiliana and Globorotalia crassaformis Zones
Type locality: Holotype (fig. 1) and figured paratypes (figs. 2-4) from a bottom core taken at a depth of 795-799 m. in well Cosandolo I, southeast of Ferrara, eastern Po Valley, northern ltaly.
Type repository: San Donato Milanese; Paleontological Department, AGIP Direzione Mineraria, San Donato Milanese, Italy;

Current identification:


Original Description

Test free, sub-globular and trochospiral with three and half chambers in the final whorl. The last two chambers have about the same size. Dorsal side with slightly depressed sutures; narrow umbilical area. Wall calcareous finely perforate. Aperture interiomarginal, extraumbilical, consisting in its upper part, of an umbilical arch sometimes bordered by a thin lip.

Size:
Diameter 0.3-0.35 mm

Extra details from original publication
Remarks. The new subspecies differs from Globorotalia puncticulata in having much less depressed sutures, flatter dorsal side, less globular chambers and only three and half chambers in the final whorl. The last chamber of Globorotalia puncticulara tends to cover the aperture which does not occur in the new subspecies. Dimensions of Globorotalia pucticulata padana are smaller than those of the type subspecies. It differs from Globorotalia bononiensis in having smaller aperture, less lobate chambers and flatter dorsal side. Globorotalia crassaformis differs from our new subspecies in having more acute periphery, wider umbilical area and more depressed sutures. The new subspecies differs from Globorotalia inflata in having less globular test and less lobate chambers. Furthermore, Globotoralia inflata is highly convexed on dorsal side while the new subspecies is rather flat.

References:

Dondi, L. & Papetti, I. (1968). Biostratigraphical zones of Po Valley Pliocene. Giornale di Geologia. 35(3): 63-91. gs


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Globorotalia puncticulata padana compiled by the pforams@mikrotax project team viewed: 2-3-2024

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