Anat Rec (Hoboken) 2021 Jun 24. Epub 2021 Jun 24.
Centro Mixto UCM-ISCII de Evolución y Comportamiento Humanos, Madrid, Spain.
Circum-nasal and nasal cavity morphology add to the picture of the Sima de los Huesos specimens as, at one level, representing a distinct morph and, at another, displaying individual variation. They developed a robust, midline-grooved, three-dimensional spinal ridge lying anteriorly in the nasal cavity floor that was distended posteriorly over the nasal cavity floor, and, typically, an expansive, three-dimensional patch of rugose bone on the nasal cavity wall where a conchal crest would otherwise lie. They vary, for example, in degree of topographic relief of the nasal cavity wall, expression of the spinal ridge, and development of nasal crests and fossae. Read More