heterocoelous

heterocoelous

[¦hed·ə·rō¦sē·ləs]
(anatomy)
Pertaining to vertebrae with centra having saddle-shaped articulations.
References in periodicals archive ?
With a "finger-like projected tibiofibular crest of femur; deep, emarginated lateral excavation with the sharply defined edge of the ventral margin of that the thoracic vertebrae (those vertebrae in the upper back); and the heterocoelous articular surface of the thoracic vertebrae," Chupkaornis will provide details about the evolution of this group of diving birds, according to a (http://www.
Chupkaornis has a unique combination of characteristics: finger-like projected tibiofibular crest of femur; deep, emarginated lateral excavation with the sharply defined edge of the ventral margin of that the thoracic vertebrae (those vertebrae in the upper back); and the heterocoelous articular surface of the thoracic vertebrae.