Fig. 1. Faces (coloured red) in biserial and spiral forms. SEM graphs (if not specified otherwise) of specimens from the Gulf of Aqaba, Red Sea. Recent. A: Floresina spicata (Cushman et Parker) has a smooth face with few radial grooves and in addition grooved septal sutures. A (plastogamic?) plate covers the narrow umbilicus. As yet, plastogamy has not been observed in vivo in this species; plp: plastogamous (?) plate; rgr: (plastogamous) radial grooves; (Hottinger, 2006; fig. 48  CC/BY-NC-SA)
- according to Hottinger (2006):
PLASTOGAMIC PLATE – a plate-like structure covering the umbilicus in plastogamic specimens of some benthic foraminifera.
Hottinger (2006), Illustrated glossary of terms used in foraminiferal research. Carnets de Géologie, Memoir 2, ISSN 1634-0744.
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