-
modern helodermatids, as
their presence is
indicated even in the 65-million-year-old
fossil genus Paraderma. In general, one
adult helodermatid has approximately...
- (represented
today by
helodermatids) and
Diploglossa (Xenosauridae and Anguioidea).
Morphological studies in the past had
classified helodermatids with the varanoids...
-
anguimorph lizards found a
close relationship between helodermatids and xenosaurids, but not
between helodermatids and varanids. Similarly, a 2005
study found a...
-
Lanthanotidae and Varanidae).
Morphological studies in the past also
classified helodermatids and
pythonomorphs with the
varanoids in the
clade Platynota,
while the...
- 000 to 8,000
years ago)
deposits near Las Vegas, Nevada.
Because the
helodermatids have
remained relatively unchanged morphologically, they are occasionally...
- independently. In snakes, the
venom gland is in the
upper jaw, but in
helodermatids, it is
found in the
lower jaw. The
origin of
venom in
squamates was...
- Epoch, when H.
texana ranged over most of
North America.
Because the
helodermatids have
remained relatively unchanged morphologically, they are occasionally...
-
position within the
clade Platynota,
which also
includes monitor lizards,
helodermatids, and the
extinct mosasaurs.
Shinisaurians were once
thought to be closely...
-
consider Shinisaurus to be more
closely related to
monitor lizards and
helodermatids than to Xenosaurus.
Xenosauridae is part of a
larger clade or evolutionary...
- PMID 23627680.
Retrieved 2021-05-11. Bhullar, B.; Smith, K.T. (2008). "
Helodermatid Lizard from the
Miocene of Florida, the
Evolution of the
Dentary in Helodermatidae...
