phyllospondylous

Century Dictionary and Cyclopedia

1. Of or pertaining to the Phyllospondyli.
2. Noting a type of vertebra characteristic of certain extinct amphibians, the Phyllospondyli. Each vertebra consists of a neural arch and a pair of delicate ventral ossifications, the hypocentra, not fused with the neural arch. Lateral ossifications (pleurocentra) are absent. The notochord is persistent and inclosed without constriction by the elements which compose each vertebra.