Sarah J. Widlansky, William C. Clyde, Patrick M. O’Connor, Eric M. Roberts, Nancy J. Stevens: Paleomagnetism of the Cretaceous Galula Formation and implications for vertebrate evolution. In: Journal of African Earth Sciences. Band139, 1. März 2018, ISSN1464-343X, S.403–420 (sciencedirect.com [abgerufen am 7. August 2023]).
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Sarah J. Widlansky, William C. Clyde, Patrick M. O’Connor, Eric M. Roberts, Nancy J. Stevens: Paleomagnetism of the Cretaceous Galula Formation and implications for vertebrate evolution. In: Journal of African Earth Sciences. Band139, 1. März 2018, ISSN1464-343X, S.403–420 (sciencedirect.com [abgerufen am 7. August 2023]).