Associations de kystes de dinoflagellés des séries du Jurassique supérieur (Oxfordien–Tithonien) du Rif externe (Prérif interne et Mésorif, Maroc) et comparaisons régionales

A review of the Jurassic dinoflagellate cyst genus Gonyaulacysta Deflandre 1964 emend. nov.

“…Gonyaulacysta jurassica has been reported from Africa, the Americas, the Arctic, Australasia, China, India, the Middle East and Russia (Johnson and Hills, 1973;Wilson, 1982Wilson, , 1984Habib and Drugg, 1987;Helby et al, 1987Helby et al, , 1988Davey, 1988;Thusu et al, 1988;Conway, 1990;Jiang et al, 1992;Sun and He, 1992;Olmstead et al, 1996;Riding et al, 1999Riding et al, , 2010Riding et al, , 2011Piasecki et al, 2004;He et al, 2005;Ilyina et al, 2005;Msaky, 2011;Hssaida et al, 2014Hssaida et al, , 2017. The reliable range of Gonyaulacysta jurassica appears to be broadly globally isochronous as Oxfordian to Kimmeridgian (Fig.…”

“…Gonyaulacysta jurassica is prominent throughout the Oxfordian and Kimmeridgian of Laurasia and northwestern Gondwana (e.g. Thusu et al, 1988;Hssaida et al, 2014Hssaida et al, , 2017.…”