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Swiss Journal of Palaeontology
Fig. 6 | Swiss Journal of Palaeontology

Fig. 6

From: Digital skull anatomy of the Oligocene North American tortoise Stylemys nebrascensis with taxonomic comments on the species and comparisons with extant testudinids of the Gopherus–Manouria clade

Fig. 6

3D renderings of the right side of the cranium of UMMP 9318, referred to Stylemys nebrascensis. A Dorsal view. B Ventral view. C Medial view onto right cranial side. D Right lateral view. E Anterior view. F Posterior view. Note that bones are labelled in bold font, and traits in regular font. acc, accessory ridge; boc, basioccipital; ep, epipterygoid; ex, exoccipital; f, frontal; fpp, foramen palatinum posterius; j, jugal; labr, labial ridge; linr, lingual ridge; mx, maxilla; op, opisthotic; par, parietal; pal, palatine; pbs, parabasisphenoid; pm, premaxilla; po, postorbital; prf, prefrontal; pro, prootic; pt, pterygoid; pto, processus trochlearis oticum; q, quadrate; qj, quadratojugal; s, stapes; soc, supraoccipital; sq, squamosal; v, vomer; vk, vomer keel

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