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Járrate Lbel: New Upper Cretaceous continental site in Morocco. A probable ornitischian non-onithopod trackway and three amble gait titanosauriform trackways

2017; Issue: 61 Linguagem: Inglês

2173-6545

Lahbib Boudchiche, Moussa Masrour, Mohamed Boutakiout, Lakhdar Hamzaoui, Jesús Herrero Gascón, Félix Pérez Lorente,

Mediterranean and Iberian flora and fauna

espanolSe describe un nuevo yacimiento con icnitas sauropodas del Cretacico Superior encontrado en Chott Tigri, en la zona de la Meseta Meridional Marroqui, entre el Atlas Sahariano y el Atlas Medio, separada del resto de yacimientos marroquies. En conjunto hay tres rastrilladas titanosauriformes de ancho de via variable, y otra de un dinosaurio desconocido que atribuimos a un ornitisquio cuadrupedo no ornitopodo. En este trabajo se han apli cado calculos basados en el analisis de las rastrilladas para deducir la distancia glenoacetabular y el tipo de marcha; en las tres rastrilladas sauropodas son congruentes con marcha amblar. EnglishIn this paper a new Upper Cretaceous site with sauropod footprints is described. The outcrop, found in Chott Tigri, in the meridional area of the High Plateau of Morocco, between the Saharan Atlas and the Middle Atlas, is separate from other known sites with dinosaur footprints. We have found: three trackways of titanosauriform features and variable gauge, and one trackway of an unknown dinosaur that we attribute to an ornithischian quadruped, but not an ornithopod. In this paper we have implemented calculations based on trackway analysis to deduce the glenoacetabular distance distance and the type of gait.In the three sauropod trackways the data are consistent with amble gait.