Szekessy Vilmos (szerk.): A Magyar Természettudományi Múzeum évkönyve 62. (Budapest 1970)

M. Nyírő, R.: Study of the smaller Foraminifera of the Weimpuszta Middle Eocene key section at Nagyesztergár (Bakony Mountains, Transdanubia, Hungary)

Gen. Bolivina D'ORBIGNY, 1839 Bolivina crenulata CUSHMAN Plate I, Fig. 11. 1936 Bolivina crenulata CUSHMAN, CUSHMAN: Cushm. Lab. Foram. Res., spec. Pub]. no. 6, p. 50, pl. 7, fig. 13. 1961 Bolivina crenulata CUSHMAN, KAASSCHIETER: Inst. Roy. d. Sei. Nat. de Belg. Mem., Mem. No. 147, p. 194, pl. IX. fig. 15-17. Altogether 3 specimens from samples 68 and 71 of the Assilina spira horizon. They are small, but the disposition and shape of the chambers and the form of the test are identical with those of the type specimen described by CUSHMAN (1936) from Hungary. The complete Eocene of Belgium and the Lutetian of the Netherlands. Gen. Tubulogenerina CUSHMAN, 1927 Tubulogenerina eocaena (GÜMBEL) Plate I, Fig. 10. 1870 Clavulina eocaena GÜMBEL, GÜMBEL: Abh. K. Bayr. Akad. Wiss, Math.-Phys. CI., 2, 10, p. 601, pl. I, fig. 2a/b. 1963 Tubulogenerina eocaena (GÜMBEL), KIESEL & LOTSCH: Geologie, Jg. 12, Beiheft 38, p. 9, pl. III, fig. 2. One single specimen from sample 69, at the base of the Assilina spira horizon. Smaller and more densely ornamented as that described by KIESEL and LOTSCH (1963); however, the shape and number of the chambers are identical. New for Hungary. Both the Middle and Upper Eocene of other European countries. Gen. Trifarina CUSHMAN, 1923 Trifarina wileoxensis (CUSHMAN <fc PONTON) .Plate I, Fig. 5. 1932 Pseudouvigerina wileoxensis CUSHMAN & PONTON, CUSHMAN & PONTON: Contr. Cushm. Lab. Foram. Res., vol. 8., pt. 3, p. 66, pi. 8, fig. 18. 1961 Trifarina wileoxensis (CUSHMAN & PONTON), KAASSCHIETER: Inst. roy. d. Sei» de Belg. Mem., Mem. No. 147, p. 199-200, pl. X, fig. 24-25. One small-grown specimen from the lowermost sample (68) of the Assilina spira horizon, strongly resembling the specimen depicted by KAASOHIETER (1961). The sutural deepenings of the chambers at the edge are but faintly expressed. On the other hand, the triserial constitution the number and shape of the uniserial chambers, and the aperture are identical with those to be seen at the figure published by KAASOHIETER. In Hungary it was known to occur in the Middle Eocene of the Dorog Basin. Lutetian of France and the Middle and Upper Eocene sands of Belgium.