Agelasina plenodonta Riedel, 1932

Moussavou, Benjamin Musavu, 2015, Bivalves (Mollusca) from the Coniacian-Santonian Anguille Formation from Cap Esterias, Northern Gabon, with notes on paleoecology and paleobiogeography, Geodiversitas 37 (3), pp. 315-324 : 316-318

1. Agelasina plenodonta Riedel, 1932

( Fig. 4F, H, L, P )

DESCRIPTION

Shell large, equivalve, inequiateral subtrigonal to subtrapezoidal in outline; umbo prosogyrate; valves inflated; outer surface with or without fine concentric growth line; anterior and ventral margins well rounded; posterior margin evenly rounded; carina in both valves.

Familly CARDIIDAE Lamarck, 1809

Figures

FIG. 4. — A, Q, Granocardium? sp. 2; B, Acanthocardia cf. denticulata (Baily, 1855); C, Granocardium productum (Sowerby, 1832); D, Granocardium sp. 1; E, Protocardia? sp.; F, H, L, P, Agelasina plenodonta Riedel, 1932; G, J, Protocardia cf. pauli (Coquand, 1862); I, Aphrodina dutrugei (Coquand, 1862); K, Atrina laticostata (Stoliczka,1871); M, Anofia? sp.; N, Plagiostoma pseudohoernesi (Riedel,1932); O, Aphrodina gabonensis Dartevelle & Freneix,1957.Scale bar:2 cm.