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Hylaeosaurus, Polacanthus, and the systematics and stratigraphy of Wealden armoured dinosaurs

  • Javier Pereda-Suberbiola (a1)
Abstract
Abstract

Two genera of armoured dinosaurs (Ankylosauria) are present in the Lower Cretaceous Wealden Beds of England. Polacanthus Owencan be distinguished from Hylaeosaurus Mantell on the basis of significant differences in the pectoral girdle, hindlimb and dermal armour. A comprehensive review of the dinosaurs from the Wealden Series of England and contemporary basins of western Europe adds further evidence of a biologicalseparation between Lower Wealden (Hastings Beds, containing Hylaeosaurusarmatus) and Upper Wealden faunas (Wealden Group of the Isle of Wight-containing Polacanthus foxii-and nearly equivalent units in Belgium, France, Germany and Spain).

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