INVESTIGADORES
CESARI Silvia Nelida
artículos
Título:
Paleozoico Superior de Argentina: un registro fosilífero integral para el Gondwana occidental
Autor/es:
CÉSARI, S.; GUTIÉRREZ, P.; SABATTINI, N.; ET AL.
Revista:
PUBLICACION ESPECIAL - ASOCIACION PALEONTOLOGICA ARGENTINA
Editorial:
Asociación Paleontológica Argentina
Referencias:
Lugar: Buenos Aires; Año: 2007 vol. 11 p. 35 - 54
ISSN:
0328-347X
Resumen:
Thick Lower Carboniferous up to Permian sequences are recognized in the extensive Argentinian basins.
These strata contain varied and abundant fossiliferous assemblages that include marine and continental
invertebrates, plant remains, palynomorphs and ichnofossils, occasionally accompanied by fish scales and
stromatolites. The diversity of invertebrates and the usefulness of palynomorphs for stratigraphic correlations
is relevant at both, local and regional scale. Early Carboniferous assemblages are characterized by
herbaceous lycophytes and pteridosperms, together with marine invertebrates and palynological associations
characterized by taxa of biostratigraphic and regional significance. Late Carboniferous sedimentation
began with glacigenic deposits followed by postglacial intervals showing the incoming of the
Nothorhacopteris-Botrychiopsis-Ginkgophyllum flora and monosaccate pollen in the palynological records.
Transgressive facies characterized the Late Carboniferous-Early Permian boundary where marine invertebrates
are usually found. The Early Permian flora contains the first glossopterid leaves associated to
abundant conifers and ferns whereas marine environments were dominated by bivalves and brachiopods.
Palynological assemblages are characterized by taeniate pollen.flora and monosaccate pollen in the palynological records.
Transgressive facies characterized the Late Carboniferous-Early Permian boundary where marine invertebrates
are usually found. The Early Permian flora contains the first glossopterid leaves associated to
abundant conifers and ferns whereas marine environments were dominated by bivalves and brachiopods.
Palynological assemblages are characterized by taeniate pollen.