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Fig. 5 | Swiss Journal of Palaeontology

Fig. 5

From: Cranial and mandibular anatomy of Plastomenus thomasii and a new time-tree of trionychid evolution

Fig. 5

Three dimensional renderings of the interior of the cranium of Plastomenus thomasii (AMNH FR 6015). A anterodorsal view with skull roof elements removed; B dorsal view with skull roof elements removes. Note symmetrical breakage in both opisthotics into the underlying endosseous labyrinth; C posterolateral view into anterior parts of the left orbital fossa; D medial view onto left side of skull. carrf cartilaginous rider fossa, cc canalis cavernosus, ccb canalis caroticus basisphenoidalis, cep cavum epiptericum, crcr crista cranii, dpp dorsal palatine process, epi epipterygoid, faccb foramen anterius canalis carotici basisphenoidalis, faf fossa acustico-facialis, fing foramen internum nervi glossopharyngei fon foramen orbito-nasale, fsm foramen supramaxillare, fst foramen stapedio-temporale, ipc intrapalatine canal, nap narial passage, pfipc posterior foramen into intraplatine canal (for vidian nerve), pr-lsc prootic bar of bone contributing to the lateral semicircular canal, pto processus trochlearius oticum, saf supraalveolar fenestra, sorc suborbital crest, sot septum orbitotemporale, sv sulcus vomeri, tra trabecula, vf vomer foramen

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