Early Cretaceous Trocholina Group and some related genera from Romania – PART 1
-
Theodor Neagu [1]
-
[1] University of Bucharest
University of Bucharest
Sector 3, Rumanía
-
- Localización: Revista española de micropaleontología, ISSN 0556-655X, Vol. 26, Nº. 3, 1994, págs. 117-143
- Idioma: inglés
- Texto completo no disponible (Saber más ...)
-
Resumen
In this work, the author is intending to do a monograph study of the genus Trocholina and it's related genera from the Lower Cretaceous deposits (Southern Dobrogea, Dâmbovicioara basin, Persani Mts). The richness of the washed material on which was possible to take of all the external morphological characters, coroborated with those offered by the thin-sections (on detached specimens) and literature, made possible to put in evidence the complexity of the so called group of Trocholina. Using carefuly the external and internal characters, the author recognises the comprehensive character of the initial diagnosis of the genus Trocholina and the necessity, following these characters, to divide its in some different genera as: Trocholina (s.str.), Neotrocholina, and Ichnusella. By the same considerations have been demostrated that larger Trocholina (alpina, elongata group) belongs in fact to a new genus Andersenolina. It is also described another new genus Bancilina, possible connected with Semiinvoluta from the Upper Triasic (after the internal characters). The paper is devided in two parts: in the first one is presented only the new genus Andersenolina with it species: A, bancilai (n.sp.), A. alpina, A. elongata, A. cherchiae, A. delphinensis, A. campanella, A. chouberti, A. perconigi (n.sp.) A. histeri (n.sp.). The second part will present the genera: Trocholina, Neotrocholina, Ichnusella, Bancilina with associated species.
