INVESTIGADORES
GULER Maria Veronica
artículos
Título:
Diconodinium lurense sp. nov., a late Maastrichtian to Danian dinoflagellate cyst from southwest Atlantic basins
Autor/es:
M.V. GULER; GUERSTEIN RAQUEL; DANERS GLORIA
Revista:
AMEGHINIANA
Editorial:
Asociación Paleontólogica Argentina
Referencias:
Lugar: Buenos Aires; Año: 2005 p. 329 - 338
ISSN:
0002-7014
Resumen:
Abstract. Upper Cretaceous and Cenozoic deposits from the Colorado and Austral Basins, Argentina and the Punta del Este Basin, Uruguay contain diverse organic-walled dinoflagellate cysts, including Diconodinium lurense sp. nov. which occurs in the late Maastrichtian and Danian throughout the basins. The new species is characterized by an autophragm that is densely covered by short spines and by relatively long apical and antapical hons, and by a variable 1a to IPa archeopyle. On our evidence, the stratigraphical range of Diconodinium lurense sp. nov. is latest Maastrichtian to Danian, and is thus a useful biostratigraphical marker for the Cretaceous-Palaeogene transition in the southwest Atlantic basins.
