From pre- + cranial.
precranial (not comparable)
- Before (in front of) the cranium
2015 October 22, “Sawfishes and Other Elasmobranch Assemblages from the Mio-Pliocene of the South Caribbean (Urumaco Sequence, Northwestern Venezuela)”, in PLOS ONE[1], →DOI:Posterior to this, the precranial cavity first appears as a dorsal and a ventral opening.