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Home Latest Update :  3 Tuesday April 2012
Other Genus
OrderFORAMINIFERIDA
Sub OrderMILIOLINA
Super FamilyMILIOLACEA
FamilyMILIOLIDAE
Sub FamilyMILIOLINAE
Genus HELENTAPPANELLA

HELENTAPPANELLA Andersen, 1985
 
 
Type species: Massilina jacksonensis Cushman var. punctatocostata Cushman, 1933 (*768), p. 3; OD.Helentappanella Andersen. 1985 (*36), p. 67 (nom. nov. pro Tappanella Andersen. 1984).Tappanella Andersen. 1984 (*35), p. 10 (non Tappanella Gudina and Saidova. 1969); type species: obj.; OD.
Test rounded to ovate in outline, up to 3.0 mm in length, chambers one-half coil in length, quinqueloculine in the early stage, adult planispiral with chambers added on opposite sides as in Massilina: wall calcareous, porcelaneous, surface with numerous pseudopores that may be irregularly scattered or may be aligned between narrow longitudinal or slightly oblique costae; aperture terminal, at the end of a slightly produced neck, cribrate. U. Eocene (Bartonian); USA: Mississippi.
 
Remarks: Differs from Heterillina in the pitted surface due to the presence of pseudopores.
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