Dacentrurine stegosaurs Dinosauria: evolution, paleobiology and the paleobiogeographical role of the Portuguese record

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Stegosaur tracks from the Upper Jurassic of Portugal

Publication . Guillaume, Alexandre Renaud Daniel; Costa, Francisco; Mateus, Octávio; DCT - Departamento de Ciências da Terra; GeoBioTec - Geobiociências, Geoengenharias e Geotecnologias; Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa

The record of Late Jurassic stegosaur tracks from the Lourinhã Formation (Kimmeridgian-Tithonian) is here revised. Thirty-eight dinosaur tracks, preserved as natural infill casts, are here reported, and thirty-two of them are attributed to the ichnogenus Deltapodus. Four of those present impressions of skin, with polygonal scales and random pattern. Deltapodus is the most common ichnogenus in the track record of the Lourinhã Formation. The sizes and shape suggest one single dacentrurine trackmaker, which could be Miragaia longicollum, also common in the same horizons.

2022-02-04Artigo científico

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Fundação para a Ciência e a Tecnologia

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SFRH/BD/148035/2019