@
Jobaria
tiguidensis
Naming perons Sereno, Beck,
Dutheil, Larsson, Lyon, Moussa, Sadleir,
Sidor, Varricchio, G.P. Wilson
& J. A. Wilson/ 1999
21m long/ Early
Cretaceous/Niger
Sauropoda
Jobaria is described as a primitive
camarasaurid-like macronarian with a short neck of 12
cervicals and broad teeth, known from a number of
individuals.
Jobaria's skull is built of very
fragile bones and has very large openings for the nose and
eyes probably it had a keen sense of smell and hearing.
The spoon-shaped teeth aer similar
to those of the earliest sauropods. They were well adapted
to nipping leaves and branches od trees.The dorsal (back)
vertebrae from the juvenile Jobaria have a very simple
structure. There are no depressions for air sacs from the
lung, and the spine at the top of the vertebra is a simple
plate of bone.
@
The ball-and-socket articulation
between neck vertebrae allowed the neck to curve
side-to-side and up-and-down. Air sacs along the neck
lightened the mass of the neck.
@