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Home Latest Update :  3 Tuesday April 2012
Other Genus
OrderFORAMINIFERIDA
Sub OrderCARTERININA

Suborder CARTERININA Loeblich and Tappan, 1981
 
Carterinina Loeblich and Tappan, 1981 (*1914), p. 163. Carterinacea Loeblich and Tappan, 1961 (*1902), p. 317 (superfamily).Carterinoida Mikhalevich,1980 (*2108), p. 59 (superorder).
Test attached, trochospiral, early cham­bers semicircular, later ones becoming cres­centic and finally irregular or spreading in the adult, with undulating surface, earliest chambers simple, later ones may have radial secondary septula resulting from infolding of the wall; wall with organic inner lining and outer layer of rodlike or fusiform secreted spicules, each one crystallographically a sin­gle elongate crystal (determined by electron diffraction) of low magnesium calcite (deter-mined by X-ray), in a groundmass of smaller spicules loosely held in an organic matrix. Eocene, Holocene.
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