Elongate Toothed Oyster

Isognomon est un genre de mollusques bivalves d'eau de mer de la famille des Pteriidae (Isognomonidae pour certaines classifications) et regroupant des espèces communément appelées marteaux. Synonymes Isognoma Lightfoot, 1786 Isognomon (Anisoperna) Iredale, 1939 Isognomon (Isognomon) Lightfoot, 1786 Isognomon (Melina) Philipsson, 1788 Isognomon (Parviperna) Iredale, 1939 Isogonum Röding, 1798 Malleoperna Iredale, 1939 Melina Philipsson, 1788 Parviperna Iredale, 1939 Pedalion Dillwyn, 1817 Perna Bruguière, 1789 Pernaria Rafinesque, 1815 Sutura Megerle von Mühlfeld, 1811 == Liste des…

(For the tree oyster mushroom, see Pleurotus ostreatus.) Isognomon is a genus of marine bivalve mollusks which is related to the pearl oysters. Isognomon is known in the fossil record from the Permian period to the Quaternary period (age range: 254.

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