| ̷ ̷ ̷ ̷| ̷ ̷ ̷ ̷_ləs adjective
Etymology: New Latin Phyllospondyli + English -ous
: being or having vertebrae with a hypocentrum but no pleurocentra, the neural arch extending down to enclose the notochord and form transverse processes to support the ribs — used especially of a larval labyrinthodont amphibian