opisthocoelous


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opisthocoelous

(əˌpɪsθəˈsiːləs) or

opisthocoelian

adj
(Zoology) relating to vertebrae in which the centrum is convex and the posterior is concave
References in periodicals archive ?
At the Cerro Tortuga fossiliferous locality the Pipidae are represented by an isolated opisthocoelous vertebra (MML 871), and the distal end of humerus (MML 856) which typically shows an eminentia capitata with its sagittal plane coinciding with that of the bone shaft (BAEZ, 1987, fig.
The centrum is heartshaped in cranial and caudal view, and moderately opisthocoelous.
The occurrence of opisthocoelous vertebral centra indicates the presence of Lepisosteiformes, or gars, to which the ganoid scales are associated and a supracleithrum with a patch of ganoid on its external side.