New finds of stegosaur tracks from the Upper Jurassic Lourinhã formation, Portugal

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Octavio Mateus, Jesper Milàn, Michael Romano, Martin A Whyte

Eleven new tracks from the Upper Jurassic of Portugal are described and attributed to the stegosaurian ichnogenus Deltapodus. One track exhibits exceptionally well−preserved impressions of skin on the plantar surface, showing the stegosaur foot to be covered by closely spaced skin tubercles of ca. 6 mm in size. The Deltapodus specimens from the Aalenian of England represent the oldest occurrence of stegosaurs and imply an earlier cladogenesis than is recognized in the body fossil record.
OriginalsprogEngelsk
TidsskriftActa Palaeontologica Polonica
Vol/bind56
Udgave nummer3
Sider (fra-til)651-658
Antal sider8
ISSN0567-7920
DOI
StatusUdgivet - 2011

ID: 49424285