The zygosphene-zygantrum articulation is an accessory joint between vertebrae found in several lepidosauromorph reptiles. This pivot joint consists of...

lineages; a known example are the zygosphene-zygantrum articulations found in snakes. Hyposphene-hypantrum articulations are found in several unrelated groups...

accessory articular processes (at the time identified as zygosphene-zygantrum articulations). The rocks in which these fossils were discovered had been...

have tall, straight neural spines that lack any processes or zygosphene-zygantrum articulation, a joint found in most squamates. The caudal vertebrae have...

proportions and the strong zygosphene-zygantrum articulation. C. iguanavus can be differentiated in its central articulations, which are kidney-shaped in...

morphology compared to Plesiosaurs. The neural arches do not have zygosphene-zygantrum articulations and are shorter than the vertebral centra, which is a state...

back vertebrae lacked ribs in the vein of lumbar vertebrae. Zygosphene-zygantrum articulations are present on the back vertebrae of both species. The ribs...