Sur quelques ammonites du Lias inferieur du Haut-Atlas marocain

Abstract

Describes Bouhamidoceras zizense n.g. n.sp. (belonging to the Juraphyllitidae), in different stages of development, from lower Liassic deposits of the High Atlas mountains, Morocco, and four other ammonites from middle and upper Lotharingian (Jurassic) deposits.

Contribution of Landsat 8 OLI imagery to mapping of lithological series and lineaments: implications for Pb-Zn mineralization exploration in the Boudahar Massif, Eastern High Atlas, Morocco

“…1A and B). In fact, the Boudahar massif matches the structures linked to the south High Atlas fault; where the Liasic reef massif (Dubar, 1948;Elmi et al, 1999) is oriented ENE-WSW. This massif is a faulted anticline structure (Agard & Du Dresnay, 1965), in which the Jurassic is different from the Paleozoic basement and is made up of E-to-ENE and NNW-SSE faults (Fig.…”

Linking Western Tethyan Rhynchonellide morphogroups to the key post-Palaeozoic extinction and turnover events

“…Firstly, new data on the hypothesized positive crural architecture-shell microstructure relationship (Manceñido and Motchurova-Dekova 2010) are empirically evaluated in several smooth and ribbed rhynchonellides from the Mesozoic-Cainozoic peri-Iberian platforms-basins system, where brachiopod faunas are widely represented virtually in all periods and series, being specially studied in their Jurassic heydays and in crucial events (e.g. Choffat 1880;Jiménez de Cisneros 1923;Dubar 1925;1931;Comas-Rengifo and Goy 1975;Calzada 1975Calzada , 1984Calzada , 1997Calzada and Pocoví 1980;García Joral and Goy 1984, 2009García Joral et al 1990, 2011Alméras et al 1996;Alméras and Fauré 2000;Bitner and Martinell 2001;Reolid 2005;Andrade 2006;García-Ramos 2006;Baeza-Carratalá 2011, 2013Comas-Rengifo et al 2006, 2013, 2015Baeza-Carratalá et al 2015, 2016a, b, 2018Colás 2015;Berrocal-Casero et al 2017Giannetti et al 2018).…”