Granocardium, Gabb, 1868

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 : 318

5. Granocardium ? sp. 2 ( Fig. 4A, Q ?)

DESCRIPTION

Shell large, inequilateral subtrigonal to elongate in outline; umbo breacked, valve slightly inflated, outer surface with big radial ribs. Anterior margin rounded; posterior margin straight, rounded into ventral margin.

6. Protocardia cf. pauli ( Coquand, 1862) ( Fig. 4G, J )

DESCRIPTION

Shell large, equivalve, inequilateral, elongate in outline; umbo prosogyrate, valves inflated, anterior margin straight, subrounded into ventral margin; posterior margin cruved; no ornament preserved.

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.