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Home Latest Update :  3 Tuesday April 2012
Other Genus
OrderFORAMINIFERIDA
Sub OrderROTALIINA
Super FamilyBOLIVINACEA
FamilyBOLIVINIDAE
Genus LUGDUNUM


LUGDUNUM Saidova. 1975
 
 
Type species: Bolivina hantkeniana Brady. 1881 (*339), p. 58: OD.
Lngdunum Saidova.1975(*2695). p.308,Test ovate to subtriangular in outline. lenticular in section, periphery carinate. cham­bers moderately inflated, biserially arranged. increasing in proportionate breadth as added, sutures straight to oblique, depressed: wall calcareous. finely perforate. thin. hyaline. optically radial, surface smooth to longitud­inally costate, with short, fine ribs. peripheral keel may be entire or may be interrupted at each suture and have a serrate margin: aperture basal to areal, large and oval. with a thick bordering lip and an internal folded or U-shaped toothplate, attached part broad and triangular, free part narrow, one angle show­ing through the aperture as a short tooth. Holocene; Pacific: Atlantic.
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