Description of Pannellainidae
(
anglais
)
fourni par BioPedia
Discorbacean foraminifera, test tiny, planoconvex, 7-9 chambers per whorl, chambers aligned with those of the preceding whorl, sutures strongly elevated and costate on the spiral side; aperture umbilical.
Diagnosis
(
anglais
)
fourni par World Register of Marine Species
Test a low trochospiral, chambers of successive whorls aligned so that septal ridges extend from the apex to the periphery on the spiral side. Oligocene to Holocene. (Loeblich & Tappan, 1987, Foraminiferal Genera and Their Classification)
Loeblich, A. R.; Tappan, H. (1987). Foraminiferal Genera and their Classification. Van Nostrand Reinhold Company, New York. 970pp.
- licence
- cc-by-4.0
- droit d’auteur
- WoRMS Editorial Board
