CATALOG OF ORIGINAL DESCRIPTIONS: Globigerina? bolivariana subsp. pannonica Samuel 1972

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 -> Globigerina -> Globigerina bolivariana pannonica
Other pages this level: << < G. aumalensis, G. ayalai, G. azerbaidjanica, G. baconica, G. bacuana, G. bakeri, G. balchanensis, G. baroemoenensis, G. baroemoenensis quadrata, G. bathoniana, G. baylissi, G. belli, G. bermudezi, G. bilobata, G. binaiensis, G. bolivariana pannonica, G. bollii, G. bollii lentiana, G. boweri, G. bradyi, G. bramlettei, G. brazieri, G. brevis, G. brevispira, G. bulbosa, G. bulbosa trisphaera, G. bulliformis, G. bulloides, G. bulloides borealis, G. bulloides bronnresigorum, G. bulloides compacta, > >>

Globigerina bolivariana pannonica

Citation: Globigerina? bolivariana subsp. pannonica Samuel 1972
Rank: sub-species
Type locality: Borehole D-233, Dudar, Hungary.
Type age: Upper Eocene, lower Priabonian
Type sample and level: 205-209 meters in borehole D-233
Holotype Repository: Bratislava; Dionyz Stur Geological Institute, Bratislava, Czechoslovakia
Type & figured specimens: holotype (fig. 2a-c), no. 10448; and paratype (fig. 3a-c), no. 10449.
Description on pages: 172-3

Current identification/main database link: Pseudoglobigerinella bolivariana (Petters 1954)


Original Description
Diagnosis. The subspecies described is characterized by 4-5 chambers in the last whorl, tending to involute bilateral test structure. The initial 1-2 whorls on the dorsal side are either invisible or slightly visible. The aperture is intraumbilical, extraumbilical extending to the dorsal side.

Description. - The test consists of 2½-3 whorls coiled in a planispiral, the initial 1-2 whorls are usually indistinct on the dorsal side due to which the test becomes almost bilateral. Consequently the form on the one hand surpasses diagnostic characters of the genus Globigerina d'Orbigny 1826, and on the other hand - it does not acquire complete characters of the genus Globanomalina Haque 1956. The last whorl consists of 4-5 slowly enlarging chambers. Dorsal and ventral intracameral sutures are deep, slightly curved. The umbilicus is broad, shallow. The aperture on the base of the last chamber is umbilical - extraumbilical, extending to the dorsal side; on the umbilical side it is provided with a distinct lip extending to the dorsal side. The wall is calcareous, perforate as in Globigerina bolivariana bolivariana Petters, 1954. The latter is connected with the subspecies described by intermediate forms.

Size: diameter 0.3-0.7 mm., height 0.18-0.3 mm.

Extra details from original publication
Remarks. - The subspecies described differs from subspecies nominate Globigerina bolivariana bolivariana Petters in evolute test, in its almost bilateral outlook and in the aperture extending to the dorsal side.

References:

Samuel, O. (1972b). Planktonic Foraminifera from the Eocene in the Bakony mountains (Hungary). Zborník geologických vied, séria Západné Karpaty. 17: 165-206. gs


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Globigerina bolivariana pannonica compiled by the pforams@mikrotax project team viewed: 30-3-2020

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