Ramalho , M. (2015). Stratigraphic Micropalaeontology of the Upper Jurassic Neritic Formations of Portugal and its Tethyan Context. I – The Algarve Basin. Memórias Geológicas. 35: 1-111.

447099

Ramalho , M.

2015

35: 1-111

Publication

The revision of the micropalaeontological studies of the neritic formations of the Upper Jurassic (kimmeridgian – Tithonian) of the Algarve Basin allowed a more detailed stratigraphic dating and a biozonation proposal on foraminifera and calcareous algae species. Other groups are also identified (coralline sponges, stromatoporoids, charophytes, ostracods, and incertae sedis), some cited and illustrated for the first time in both Algarve and Western Portugal. Three new species of foraminifera (Neokilianina concava, Amijiella? Adherens and Involutina algarvensis) and one calcareous alga (Heteroporella sagresensis) are described. On the basis of micropalaeontological data, lithology and tectonics, we discuss the evolution of the Algarve Basin during the Late Jurassic and compare it to others Tethyan carbonate platforms.

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