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Genus Annuloplatidia Zezina, 1981 |
[Type species= Annuloplatidia indopacifica Zezina, 1981, p. 144] |
Small (up to 4.7 mm wide), smooth, planoconvex to concavoconvex; foramen amphithyrid; pedicle collar sessile; deltidial plates rudi- mentary. Crura projecting anteriorly from inner socket ridges; transverse band connecting distal extremities of divergent septal flanges on apex of septal pillar to form a triangular ring; descending branches as in Platidia. Differs from Platidia in presence of transverse band in brachidium.
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Pliocene - Present
Diagnosis from volume 5 of the
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Extant Species of Annuloplatidia |
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Diagnosis |
FIGURES : Annuloplatidia |
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