Page:Synopsis of the Exinct Batrachia and Reptilia of North America. Part 1..pdf/62

58 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.