Meaning & use
Premaxilla
Last updated
A paired bone at the front of the upper jaw in many vertebrates, located in front of the maxilla and typically bearing the incisor teeth.
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In birds, the premaxilla has fused and elongated to form much of the beak.
The fossil's premaxilla showed distinctive tooth sockets typical of early reptiles.
A note on using this word
A key anatomical landmark used by paleontologists to classify and compare vertebrate skulls.
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