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Swiss Journal of Palaeontology
Fig. 13 | Swiss Journal of Palaeontology

Fig. 13

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. 13

3D renderings of the mandible of FMNH UC 1501, referred to Stylemys nebrascensis. A Mandible as preserved in dorsal view. B Lateral view of left mandibular ramus. C Medial view of left mandibular ramus. D Close-up onto articulation area of left mandibular ramus. Note that bones are labelled in bold font, and traits in regular font. Abbreviations: an, angular; art, articular; avcp, anteroventral coronoid process; cor, coronoid; corp, coronoid process; ctg, chorda tympani groove; den, dentary; fai, foramen alveolare inferius; fat, foramen auriculotemporalis; fdfm, foramen dentofaciale majus; fim, foramen intermandibulare medius; ffM, foramen into fossa Meckelii; labr, labial ridge; linr, lingual ridge; pcp, posteromedial coronoid process; pimf, posterior intermandibular foramen; pre, prearticular; rap, retroarticular process; secf, surangular ectocondylar flange; sM, sulcus Meckelii; sur, surangular; syg, symphyseal groove

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