Foraminifera


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.

Fo·ram·i·nif·e·ra

(fō-ram'i-nif'ĕr-ă, for'ă-mi-nif'er-ă),
A subclass of Rhizopoda possessing anastomosing pseudopodia; these form a network around the cell that usually develops into a complex calcareous shell; an important component of the ocean bottom and of rockbeds overlying oil deposits.
[L. foramen, aperture, + fero, to carry]

Foraminifera

amoeboid PROTOZOANS that possess chitinous, calcareous or siliceous shells that are usually many-chambered. Calcareous Foraminifera are the main constituent of chalk.
References in periodicals archive ?
Drawing a circle back to my first meditation where I mentioned 'the kilometres upon kilometres of chalk cliffs, temples of honour to indeterminable generations of calcareous foraminifera and coccolithophors,' it made sense to offer the foraminifera Katherine and Christina's porcelain bodies to 'sculpt' with.
Since the demand for oxygen in ostracods was higher than that of some foraminifera species such as calcareous oxygen deficiency-adapted specialists [18, 25], the few ostracod species (Cythereis and Ovocytheridae species) recovered from the Abakaliki fold belt might be more tolerant of reduced oxygen and salt contents.
review how size differences and rate of growth affect trace element compositions in planktonic foraminifera.
missing varves Kitagawa & van and counting der Plicht 1998) errors) Sample material Foraminifera (oceanic; depth Independent Corals (surface depends on dating method ocean) species) Tree rings (accurate to the year) Uranium series Coral records (e.
All known Smackover bioherms in Alabama are microbially dominated, though some contain the remains of foraminifera, sponges, skeletal algae, and metazoans (Baria and others, 1982; Crevello and Harris , 1984; Markland, 1992; Kopaska-Merkel, 1994, 1998a; Kopaska-Merkel and Schmid, 1999).
To evaluate living foraminifera present during sampling, the top 2 cm of the cores was stained with rose Bengal (Walton 1952; Murray & Bowser 2000), a protein-specific stain.
The most important and common foraminifera in both sections are:Robulusmunsteri, Gyrodinnidesglobosa, Vaginulina sp.
That leaves fewer carbonates available for carbonate-forming (or "calcifying") foraminifera to make their tests.
Foraminifera and fishes of Tertiary units in the Bakersfield, California area.
Agglutinated foraminifera with a brackish water affinity have been recognized throughout this succession, including the interval relevant to the present study (Gibling and Wightman 1994).
In efforts to determine just how much carbon dioxide--driven change the ocean can handle, researchers are looking at fossils of tiny sea organisms, called foraminifera, preserved since the last ice age.
The Catahoula Formation has marine and nonmarine members as characterized by foraminifera and glauconite, and silicified and lignitized wood that is often associated with orthoquartzites.