Globigerina


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Related to Globigerina: globigerina ooze

Globigerina

 

a genus of protozoan animals of the order Foraminifera of the class Rhizopoda. The porous calcareous shell of Globigerina consists of several interconnected, spherical chambers. The surfaces of the chambers are covered with numerous long, radial needles, which facilitate floating in water. Globigerina, as distinguished from other rhizopods, is not benthonic but free swimming, and it is found in large numbers in plankton in warm seas. There are several tens of species, including many fossils. The shells of dead Globigerina fall to the bottom of the sea and form the principal constituent of deepwater oceanic globigerina ooze.

References in periodicals archive ?
Bandy, "Variations in Globigerina bulloides d'Orbigny as indices of water masses," Antarctic Journal, vol.
Kennett, "Biometric analysis of phenotypic variation in Recent Globigerina bulloides d'Orbigny in the Southern Indian Ocean," Marine Micropaleontology, vol.
Key to the species of Globigerina from Thukela Shelf
Globigerina calida calida Parker: Blow 1969: 317, pl.
laevigata (ra), Gavelinella beccariiformis (ra), Gavelinella danica (ra), Gavelinellopsis micra (ra), Globigerina linaperta (ra), Globorotalia intermedia-wilcoxensis, Gyroidina octocamerata (ra, caved to 1386.
2 Ma; this event marks the top of the Globigerina calida calida Subzone (Fig.
6 Ma, in the lower half of the Globigerina calida calida Subzone (Fig.
000 m de profundidad, donde las especies mas abundantes que constituyeron el 88%, fueron: Globigerina bulloides (36%), que fue la mas abundante durante todo el tiempo de muestreo, Neogloboquadrina incompta (28%), Globigerinella calida (9,5%), Globogerinita glutinata (6,62%), Globorotalia menardii (6,33%), Globorotaloides hexagonus (3,62%) y Globigerinella digitata (2,42%) (Tabla 2).
Nummulitesacutus, Nummuliteslaevigatus, Nummulitesdistans, Nummulitespuschi, Globigerina lozani, Globigerina hagni.
gunteri is cited by this author from Kapur Quarry in the Cipero Formation in SE Trinidad, which was dated by the Globigerina ciperoensis ciperoensis and Globorotalia kugleri zones of Late Oligocene age according to Bolli & Saunders (1985).
Cuadro 1 Foraminiferos Miembro Roca Carballo Especies Localidad Localidad Caldera Rio Paires Globigerina brazieri x Globigerina ciperoensis x Globigerina nepenthoides x Globigerina praebulloides x x Globigerina selli x Globigerina woodi x x Globigerinoides bnmatulus x Globigerinoides obliquus x Globigerinoides sacculifer x x Globigerinoides trilobus x Globigerinoides obesa x Globigerinoides birnageae x x Globigerinoidesclemenciae x Globigerinoides maveri x Globigerinoides poriphorondo x Globigerinoides praescitula x x Globigerinoides siakensis x Globigerinoides zealandica x Neogloboquadrbia continuosa x Catapsvdrax stainforthi x