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A Turiasaurian (Dinosauria, Sauropoda) Tooth from the Pliensbachian Hasle Formation of Bornholm, Denmark, Shows an Early Jurassic Origin of the Turiasauria
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Orientador(es)
Resumo(s)
Turiasauria is a clade of basal sauropod dinosaurs hitherto only known from the Middle Jurassic (Bathonian) to the Lower Cretaceous (Valanginian). A new find of a shed tooth crown from the Lower Jurassic (Pliensbachian), Halse Formation of Bornholm, Denmark, is spoon-like, asymmetrical, and heart-shaped, which identifies the tooth as turiasaurian, pushing the origin of the Turiasauria some 17 My back into the Lower Jurassic. This suggests a North Pangean/Laurasian origin of the turiasaurian clade, which then, during the Middle to Late Jurassic, dispersed through Europe, India, and Africa, with their latest representatives found in the Early Cretaceous of England and North America. Furthermore, this is the first record of a sauropod from the Pliensbachian in Europe.
Descrição
Publisher Copyright: © 2023 by the authors. This research received no external funding. We are grateful to the amateur collector Mette Agersnap Grejsen Hofstedt, who found the tooth and brought it to our attention, and to Sten Lennart Jakobsen for providing photos of the tooth. We thank the two anonymous reviewers whose input greatly contributed to the article.
Palavras-chave
Biogeography earliest record Laurasia Lower Jurassic Sauropoda Turiasauria Ecology Ecological Modelling Agricultural and Biological Sciences (miscellaneous) Nature and Landscape Conservation