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Home Latest Update :  3 Tuesday April 2012
Other Genus
OrderFORAMINIFERIDA
Sub OrderMILIOLINA
Super FamilyMILIOLACEA
FamilyHAUERINIDAE
Sub FamilyMILIOLINELLINAE
Genus IDALINA

IDALINA Schlumberger and Munier-Chalmas, 1884
 
 
type species: Idalina antiqua Schlumberger and Munier-Chalmas, 1884 (syn.: Biloculina antiqua d'Orbigny, 1850 (*2312) p. 210, non Biloculina antiqua Karrer, 1867; Triloculina cretacea d'Orbigny, 1850 (*2312 ), p. 210; both d'Orbigny names unavailable, ICZN Art. 12 'a), no description); OD.
Idalina Schlumberger and Munier-Chalmas, 1884 ( *2780), p. 629 (non Idalina Norman, 1890).
Test ovoid to fusiform, proloculus followed by chambers one-half coil in length, early stage quinqueloculine, later triloculine, triloculine, and in the adult with completely en­veloping chambers, or some of the stages may be lacking in some specimens; wall calcareous, imperforate, porcelaneous, chambers with complete floors; aperture in quinqueloculine stage with simple tooth, in triloculine stage with simple tooth and crenulate margin, Biloculina stage has strongly developed crenulations in a terminal aperture, and the adult has a terminal aperture with convex trematophore pierced by numerous irregular openings. U. Cretaceous (Senonian); France.
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