Ossified Hyoid

Some articles on hyoid, ossified hyoid:

Purr - Mechanism
... to Owen (1834/1835) and was definitely introduced by Pocock (1916), based on a difference in hyoid anatomy ... pardus) have an incompletely ossified hyoid, which according to this theory, enables them to roar but not to purr ... as the fifth felid species with an incompletely ossified hyoid, purrs (Hemmer, 1972) ...
Cat Communication - Auditory Communication Methods - Purring
... (1834/1835) and was definitely introduced by Pocock (1916), based on a difference in hyoid anatomy ... pardus) have an incompletely ossified hyoid, which according to this theory, enables them to roar but not to purr ... uncia), as the fifth felid species with an incompletely ossified hyoid, purrs (Hemmer, 1972) ...