Przyczynki do znajomości miocenu Polski. Część IV

Wilhelm Friedberg


A contribution to the knowledge of the Miocene of Poland. Part IV

1. The Miocene Basin of Rzeszów. I described the Miocene of Rzeszów 36 years ago. Later Tołwiński (5) determined the outcrop in Trzciana (to the North of Rzeszów) as Inoceramus beds and ,the same was said by Horwitz (6) after he had examined those outcrops, but moreover he had' completely denied the existence of the Miocene Basin of Rzeszów. So I have examined the outcrops in the northern part of the Basin again and I have come 1o the conclusion, that the beds in Trzciana and Będziemyśl described by me many years ago as of Tortonian age, actually belong to the Inoceramus beds, although it is very possible, that the covering clays are of the Tortonian age. At any rate there is Tortonian in Świlcza and Nockowa because I collected Tortonian Mollusca in those places many years ago, and now I have found them again. We have therefore no reason to deny the existence of the Miocene Basin of Rzeszów, although the Miocene transgressed there over the Carpathian flysch. 2. Dryszczów. Miocene beds rich in fossils, described by M. Łomnicki (8, 9) and by me (10) are known in this locality (8 km north of Brzeżany). Sandy clays with a peculiar fauna, very similar to that ’of the Korytnica clays are lying at the bottom. In the Polish text (page 134) 'the list of Molusca collected there is given. Those known in Polish Miocene only from Dryszczów and Korytnica are marked with a cross. 3. Szuszkowce. 10 years ago I explored the fauna of the Tortonian sands in Szuszkowce in Wolhynia and I published (13) a list of the Mollusca found there. I have been in that locality still several times and I have gathered more species quoted on pages 136—137 of the Polish text. Concerning these sands, they belong to the Middle Tortonian, according to ]. Nowak (14), that is to his Grabowiec beds. Not long ago Kowalewski (15) wanted to-regard the sands of Szuszkowce as the Upper Tortonian (Buhlovian). This is however groundless, because only a few (eight) species of the Sarmatian age are known in these sands and in a small quantity, while in the Upper Tortonian beds of Buhłow, Pryskowce, Korostową jetc. the Sarmatian species are more numerous and some can be collected in a great quantity of specimens.

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