- The
squamosal is a
skull bone
found in most reptiles, amphibians, and birds. In fishes, it is also
called the
pterotic bone. In most tetrapods, the squamosal...
- The
squamosal suture, or
squamous suture,
arches backward from the
pterion and
connects the
temporal squama with the
lower border of the
parietal bone:...
-
Mercuriceratops squamosal suggests it was a
transitional form
between older rectangular squamosals of
centrosaurine shape and
later triangular squamosals, the describers...
- the
retention as an
adult of a
juvenile trait.
Adults retain the
short squamosals, a case of paedomorphosis. In 2009, John Scannella,
investigating dinosaur...
-
which is
ventrally bordered by a
zygomatic arch
composed of the
jugal and
squamosal bones. This
single temporal fenestra is
homologous to the infratemporal...
-
absent Squamosal mainly restricted to top of
skull The
occipital flange of the
squamosal is
little exposed on the
occiput Anterior process of
squamosal narrow...
-
millimetres (1.1 in) long
which is
missing the
skull roof,
basicranium and
squamosals and from the
referred specimens MPCA PV 450, a
partial left
lower jaw...
- in more
basal synapsids, but also the
squamosal and
surangular bones. A
joint between the
dentary and
squamosal bones, as seen in
modern mammals, was...
-
teeth in the back of the jaw,
elaborate nasal horns, and a thin parietal-
squamosal shelf that
extends back and up into a frill. The
group is
divided into...
- a special,
secondarily evolved jaw
joint between the
dentary and the
squamosal bones,
which in more
derived taxa
would replace the
primitive tetrapod...
