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Fig. 3 | BMC Evolutionary Biology

Fig. 3

From: Oldest ctenodactyloid tarsals from the Eocene of China and evolution of locomotor adaptations in early rodents

Fig. 3

Comparative morphology of the calcaneus (right). Tamquammys robustus (a) IVPP V24136.3, T. wilsoni (b) IVPP V24137.1, extant rodents: Rattus norvegicus (c), Marmota marmota (d), Sciurotamias davidianus (e), Cynomys ludovicianus (f), Ondatra zibethicus (g), and Paleocene rodentiaform Tribosphenomys minutus (h, left bone, mirror view). From top to bottom: caudal, dorsal, lateral, plantar, and cranial views

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