最終更新日:2022/12/24
This specimen is identified as a fossil snake on the basis of its highly kinetic skull with anteriorly free ending maxillae and dentaries, slender and elongate tooth-bearing palatines and pterygoids, single mental foramen in the dentary, high number of presacral vertebrae, and the presence of hypapophyses or hemal ridges throughout the trunk, distally bifurcated lymphapophyses in the cloacal and proximal tail region, and paired hemapophyses on the tail vertebrae.
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This
specimen
is
identified
as
a
fossil
snake
on
the
basis
of
its
highly
kinetic
skull
with
anteriorly
free
ending
maxillae
and
dentaries,
slender
and
elongate
tooth-bearing
palatines
and
pterygoids,
single
mental
foramen
in
the
dentary,
high
number
of
presacral
vertebrae,
and
the
presence
of
hypapophyses
or
hemal
ridges
throughout
the
trunk,
distally
bifurcated
lymphapophyses
in
the
cloacal
and
proximal
tail
region,
and
paired
hemapophyses
on
the
tail
vertebrae.