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Within the Neomorphinae, there are five characteristics that are shared by the group Geococcyx, Morococcyx and Neomorphus that differ from Tapera and Dromococcyx: the lateral length of the frontal is larger, the lateral process of the parasphenoid is reduced, the lateral orbitonasal foramen is larger, the bony lamella covering the nasal aperture is larger and the dorsal process of the nasal is absent.
Anterior bleeding sites are bleeders anterior to the bony nasal aperture, and are relatively easy to manage because the vessel may be visualised and controlled with basic equipment such as a headlight, nasal suction device and nasal speculum and simple cautery techniques.
In all previous reports, infraorbital margin and anterior nasal aperture were considered as landmarks of reference.