- thirty-six
dorsal vertebrae and nine
pygal vertebrae; M.
hoffmannii had
likely up to thirty-two
dorsal vertebrae and ten
pygal vertebrae; and M. missouriensis...
-
periphals then
extend along each side. At the
posterior of the s**** is the
pygal bone and in
front of this
nested behind the
eighth pleurals is the suprapygal...
- the
eighth thoracic vertebra which are
smaller than the others, and the
pygal plate closest to the tail
which is larger.
Archelon has ten
pairs of ribs...
-
clades is unclear.
Tylosaurus had 29 to 30
presacral vertebrae, 6 to 7
pygal vertebrae, and 89 to 112
caudal vertebrae; due to the lack of a bony articulation...
-
dorsal (back) coat
varies from gray to rosy-brown,
sometimes with a
brown pygal patch around the tail region,
where the fur
grades to pale gray or grayish...
- Bennison's
skeleton and
consisted of an
articulated series of fifty-four dorsal,
pygal, and
caudal vertebrae. It was sent to UC
Berkeley as UCMP 33913.
Field expeditions...
-
eleven peripherals (per side), a
nuchal at the
front and a
suprapygal and
pygal at the rear of the s****. As
noted earlier, neurals,
although always present...
-
cervical and
anterior dorsal vertebrae with
cervical and
dorsal ribs,
isolated pygal and
caudal vertebrae, sca****-coracoid and
scattered elements of the appendicular...
-
differed from the more
locally known Tylosaurus based on a
higher count of
pygal vertebrae,
longer external nares, and
femur longer than the humerus. The...
- silver-gray or
black tints on the crown, back, and limbs. The base of the tail ("
pygal region") can be yellow. The ears and face are hairless, and the skin may...
