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Taphofacies and Petrofacies Theoretical Marine Models Applied to the Coquina of...

Garcia, Gustavo Gonçalves; Garcia, Antônio Jorge Vasconcellos; Henriques, Maria Helena Paiva; Marques, Rafael Mendes; Reis, Rui Pena dos

The Amaral Formation has a wide geographic distribution within the Lusitanian Basin, at the western Iberian Margin (Portugal). The different depositional contexts for this unit enabled the distinction of three sectors: lagoon, lagoon-barrier, and marine-distal. The integration of the evolutionary taphonomic analysis of its fossil assemblages with the analysis of multiscale properties through the CAMURES methodo...


Ammonite-benthic Foraminifera turnovers across the Lower-Middle Jurassic transi...

Henriques, Maria Helena Paiva; Luisa Canales, Maria

This paper describes and characterises the co-occurrence of ammonite and benthic foraminiferal assemblages across the São Gião outcrop (Central Portugal), a reference section for the Lower-Middle Jurassic boundary in the Lusitanian Basin. The upper Toarcian-lower Aalenian marls and marly-limestones in this section provide a precise and detailed ammonite-based biostratigraphic zonation, with a mixed assemblage o...


Biostratigrafia e paleontologia (Ammonoidea) do Aaleniano em Portugal (sector s...

Henriques, Maria Helena Paiva

Tese de doutoramento em Ciências (Paleontologia, Estratigrafia e Geo-História) apresentada à Fac. de Ciências e Tecnologia da Univ. de Coimbra; O principal objectivo do presente trabalho é estabelecer o quadro biostratigráfico do Aaleniano no sector setentrional da bacia lusitaniana (Portugal) a partir da distribuição estratigráfica dos representantes de Ammonoidea. Foram efectuados diversos perfis, bem como o ...


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