Integrated Middle and Late Davonian miospore and chitinozoan zonation of the Parnaiba Basin, Brazil: an update

Yngve Grahn (1) , José Henrique G. de Melo (2) , Stanislas Loboziak (3)

1 UERJ - Universidade do Estado do Rio de Janeiro [Brasil] = Rio de Janeiro State University [Brazil] = Université d'État de Rio de Janeiro [Brésil]
2 Applied Biostratigraphy and Palaeoecology Management of Petrobras R & D Center
3 LPPP - Laboratoire de paléontologie et paleogéographie du paleozoique

New, hitherto unpublished miospore information from the Middle and Upper Devonian of the Parnaiba Basin, northeastern and northcentral Brazil, has enabled refinement of the chitinozoan zonation recently proposed for that basin. To a large extent, Devonian miospore zones defined for the Amazonas Basin can be also recognized in the Parnaiba Basin and other Western Gondwanan basins. The miospore zones are discussed and compared to the coeval Southern Euramerican miospore zonation, the regional Petrobras palynozones, and to the chitinozoan zonation of the Parnaiba Basin, additional Western Gondwanan regions, and other parts of the world.

Mots clés: Chitinozoans; miospores; Middle/Late Devonian; Parnaiba Basin; Brazil

Domaines: Paléontologie

Yngve Grahn, José Henrique G. de Melo, Stanislas Loboziak. Integrated Middle and Late Davonian miospore and chitinozoan zonation of the Parnaiba Basin, Brazil: an update. Rev. bras. Paleontol., 2006, 9 (3), pp.1-12. ⟨hal-00134048⟩