Assertion: frontal bone's part | /r/CapableOf | grow in theropod
Facets:
value: to form a horn
type: PURPOSE
Source sentences:
text: In some theropods (e.g. Allosaurus, Ceratosaurus, Albertosaurus) the upper part of the lacrimal bone grew in such a manner as to form a horn on the top of the dinosaur's head, usually situated above, and anterior to the eye.