Vouivria: Difference between revisions

The describing authors identified a number of distinguishing traits, [[autapomorphies]] or unique derived characters. Four of these distinguished ''Vouivria'' from all other known sauropods. In the middle and rear neck vertebrae, the ''laminae spinopostzygapophyseales'' (spinopostzygapophyseal laminae, or SPOLs), ridges that run from the rear joint processes to the [[neural spine]], thicken towards the rear near the top of the spine. In the third [[metacarpal]] of the hand, the ridge that runs along the inner rear corner of the shaft, if the bone is held vertically, splits at about a quarter of the shaft length measured from the top, the outer branch having the form of a bulge. The fourth metacarpal has a flange along the top third of the inner rear corner. Between the lower condyles of the thighbone, two transverse ridges run, at the border with the rear shaft.<ref name="Mannion2017"/>

Also, two "local" autapomorphies were identified, that distinguished ''Vouvria'' from its nearest relatives in the Brachiosauridae. In the front tail vertebrae both the ''lamina centrodiapophysealis anterior'' (anterior centrodiapophyseal lamina or (ACDL) and the ''lamina centrodiapophysealis posterior'' (posterior centrodiapophyseal lamina or (PCDL), ridges that run on the front underside, respectively the rear underside, of the transverse process towards the vertebral body, are well-formed. The [[humerus]] or upper arm bone, has a deltopectoral crest, serving for the attachment of the ''[[deltoid muscle|musculus deltoideus]]'' and the ''[[pectoralis major]]'', that doubles in transverse width to below.<ref name="Mannion2017"/>