Theropod pedal unguals from the Late Cretaceous (Cenomanian) of Morocco, Africa

Fernando Novas, Fabio Dalla Vecchia, Diego Pais


Two different theropod pedal unguals from the Upper Cretaceous (Cenomanian) of Tafilalt, Morocco
are described. One of them belongs to a slender kind of abelisauroid theropod. Comparison with other members
of this group reveals that abelisauroid unguals show high morphological diversity in congruence with what is
known on other parts of the skeleton. Another large-sized ungual resembles that described as “Spinosaurus B”
by Stromer (1934), and is here referred with caution to Theropoda, although ignoring to which theropod lineage
it belongs. Comparisons between northern (e.g., Sahara, Africa and Brazil) and southern (e.g., Patagonia)
Gondwanan Cretaceous dinosaur faunas reveal some differences leading to the conclusion that Gondwanan
faunas were not uniform across this supercontinent.

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