Marisia - Maros Megyei Múzeum Évkönyve 35/2. (2015)

Paleontology

Fiorina DIACONU Ostrea (Ostrea) digitalina Dubois, 1831 (Pl. II, Figs. 3, 4) 1955 Ostrea (Ostrea) digitalina, Moisescu, pag. 108-109, pl. VIII, fig.24 1972 Ostrea digitalina, Macarovici, Turcule^, pag. 185—186, pl. VI, fig. 16a, pl. VII, fig. 2b Description. Upper valve is quite thin almost flat, smooth, and the muscular imprint pear­­shaped. Bottom valve is smooth. On the cardinal plateau sees a ligament fosse deep enough. The muscular imprint is big with an oval outline, in the back side. Family Carditidae Genus Cardita Bruguiere, 1792 Cardita jouanneti Basterot, 1852 (Pl. II, Fig. 5) 1955 Cardita (Megacardita) jouanneti, Moisescu, pag. 86-87, pl. IV, fig. 1,3 1972 Cardita (Megacardita) jouanneti, Macarovici, Turculcf, pag. 183, pl.LVI, fig. 176 1973 Cardita jouanetti, Clichici, pl. XII, fig.5. Description. Valves are big and thick. The external surface of the valve is covered with broad radial ribs. The inter-rib narrower are ranges. The ribs and inter-rib widen from umbonal part up to the lower edge of the valve. These are covered by well highlighted growth striations. Remarks. It is the only Badenian species of Cardita missing tubercles on the ribs, but exposes growth striations well marked. Family Pectinidae Lamark Genus Pecten Müler, 1776 Pecten revolutus Michelotti, 1897 (Pl. II, Fig. 6) 1977 Pecten revolutus, Clichici, p. 126—127, pi. Ill, fig. 1-4 Description. The right valve is curved and the left valve almost flat. The left valve is ornamented with 11—12 radial ribs, smooth, well highlighted, separated by inter-rib area twice wider than the ribs. On the inner face shows wide ribs corresponding to inter-rib space on the external face. Remarks. The left valve differs from that of the species Pecten subbenedicuts, by flatter ribs and narrower than the inter-rib spaces. Pecten cf. hornensis Deperet & Roman, 1902 (Pl. II, Fig. 7) I960 Pecten cf. hornensis, Popa, p. 333—335, pl. I, fig-3, pl. II, fig. 9. Description. Triangular-rounded shell with specific ears. The dorsal face exhibits ribs that widen to the lower edge, flattened, with edges at right angles. Inter-rib spaces are less wide (1/2 the width of the coast). Remarks. Present in the Early Miocene. Genus Chlamys Chlamys elegans Andrzejowski, 1870 (Pl. Ill, Figs. 1-4) 1968 Chlamys elegans, Iliescu, Hinculov, Hinculov, p. 87, pi. 8, fig. 2,3. 1977 Chlamys elegans elegans, Nicorici, p.137—138, pl. XXIV, fig.1,2,3, pl. XXV, fig. 1, 2, pl. XXVII, fig.3,4,5 146

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