THE EXTINCT BATRACHIA, REPTILIA
58
Emmons
describes a species Clepsysaurus leaii, from the coal strata of
from near Leakesville, N. Ca., which appears It is represented
linensis.
may
indicate a fifth species, there
the description, to determinine any reference. as the
Having
satisfied
by a
locality
(Phcenixville,
nothing in the type specimen, nor in
cannot safely be regarded as the same
187
come next
Emmons
which the two
feet of rock.
cranium in the
Museum
in order for consideration.
figures the
page 179), which bears a near resemblance
to this genus,
etc.,
myself of the existence of four distinct species of Belodonts in our
In his Manual of Geology, Prof.
cast of this
its
locality, since the strata in
vertical thickness of
Triassic beds, their generic relations
The
is
It
Belodon here described, from the same
occur, are separated
14 vertebrae,
any of those above mentioned.
although the Eurydorus serridens, Leidy, from
Pennsylvania),
River,
be distinct from the Bhytidodon earth
to
cast of a block of sandstone containing
different from
which indicate a species Finally,
by a
Dan
to
of the
cranium of a Reptile
(fig.
157,
that of the Belodon plieningeri, Meyer.
Academy
and presents no characters by which
it
Nat.
Sci.,
confirms the reference
can be distinguished from
The
it.
specimens (No. 4) consist in part of the short frontal bones with part of the orbits and
and a portion of the ramus of the mandible, of a saurian near the genus
cranial cavity,
The ilium
Belodon, perhaps the same. fig.
47,)
and the femur,
(fig.
figured
by Emmons (N. Amer. Geology,
48), with portions of mandibular
ramus
(fig.
p. 77,
42), obviously
indicate Belodonts.
Of the
Phcenixville saurian, portions of the ilium and ischium are preserved, which
indicate that the auimal
The
is
neither a Dinosaurian nor a Dicynodont, nor yet a Crocodile.
portion of ilium answers to that of Belodon, as figured by
The Dan River
species
is
referred to the
same group without
only teeth occurring in the same strata are, according to
Deep
the smooth toothed Belodont from
Deep River
to those of the
Meyer and Emmons.
The
River.
Emmons,
The
entire certainty.
identical with those of
cervical vertebrae are quite similar
species.
I can as yet find no generic characters by which to distinguish these species from the
Belodon of Meyer, neither in the describes
and
two forms
numerous
specifically,
observation. ically
figures
He
though
known
genera.
teeth,
it is
figures ilia of
Some
nor extremital regions.
two
Meyer
both smooth and sulcate, without distinguishing the
certain that three species of the genus species,
Emmons (1. was referred by Owen
from that figured by
This genus
cranial, dental, pelvic
c. fig.
came under
his
one of which cannot be distinguished genet47).
to the
Thecodontia, along with some other
little
of the latter, especially Bathygnathus and Clepsysaurus, are in
our opinion Dinosaurian, while others, as Belodon, represent a family of the present order.
