Exceptional In Situ Preservation of Chondrocranial Elements in a Coniacian Mosasaurid from Colombia
María Eurídice Páramo-Fonseca,
José Alejandro Narváez-Rincón,
Cristian David Benavides-Cabra
et al.
Abstract:The first record of well-preserved chondrocranial elements in mosasaurids is here described. These elements are preserved in situ in a Coniacian skull found in north-central Colombia, inside a calcareous concretion. Based on a 3D model generated from computed tomography scans, we identified elements of the nasal and orbitotemporal regions. Our descriptions show that in this specimen, the chondrocranium was reduced, more so than in most lacertilians (including their closest recent relatives, the varanids), but … Show more
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