Foraminifera

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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 ?
During analysis of foraminiferans in Late Wisconsinan to modern sediments at locations on eastern Canada's continental shelf, sharp, shorted-lived increases in the percent occurrence of two species groups, Cassidulina-Islandiella and Stainforthia, termed a DFA sequence, appeared consistently in the early post-glacial record.
1998), benthic foraminiferans in Chesapeake Bay sediment cores (Karlsen et al.
Benthic foraminiferan species were dominant in 1600 but pelagic species (Cooper & Brush 1993) and relatively few benthic species tolerant of anaerobic conditions (Karlsen et al.
He established the age of the undifferentiated formation as middle to late Miocene, based upon benthic foraminiferans.