evil PROCEEDINGS OF THE GEOLOGICAL SOCIETY. 
At a few leagues from Sezanne, at Mont Aimé, and at the plateau 
of Faloise or of La Madelaine, the remains of fish and reptiles were 
discovered in this formation, without the trace of those of any mam- 
mal. The fish and reptiles differ alike from those of the tertiary 
rocks above and of the cretaceous rocks beneath. Among the fish 
was a Cycloid, a large species of the cretaceous genus Istzeus of 
Agassiz, differing from any species described by him. Of Placoids, 
there was a species of the genus Zamna, and another probably of the 
same genus, and approachmg Lamuna verticalis of Agassiz, without 
being identical with it. It may belong to the genus Otodus. Teeth 
also were discovered, resembling those of the Pycnodonts, but the spe- 
cimens were too imperfect to establish the presence of this family. 
The most remarkable fossil was a saurian of the section of Croco- 
diles, and of the subgenus Gavial, to which the specific name of so- 
rhynchus has been assigned. After giving a detailed account of this 
saurian, M. Pomel remarks, as deserving of attention, that a reptile 
should occur in the upper limit of the secondary rocks which should 
more remind us of the saurians of the Jurassic series than of those 
found hitherto in the European tertiary deposits. Many important 
parts of the skeleton show, it is observed, that it partakes of living 
types. At least one large species of tortoise is discovered among the 
reptilian remains. 
With respect to the flora of the Sezanne deposit, there is an inde- 
terminable species of moss, and the genus Marchantia is for the first 
time seen in a fossil state, in a species approximating to, but distinct 
from, M. polymorpha. A new Asplenium and Aspidium represent 
the ferns, and are very abundant. There is also a third species which 
may belong to the genus Sphenopteris. Leaves were found closely 
approaching those of Cinnamomum and the chestnut ; a new Corylus, 
a Caprifolium, and leaves of Salix, Populus, &e. M. Pomel calls 
attention to the remains of a crustacean, of the genus Oniscus, as 
being abundantly discovered among the mosses and Marchantie. 
This he considers as confirming his opinion that the deposit resem- 
bles the travertine now forming in many parts of Central France. 
Durimg the year Mr. M‘Coy has published an account of the 
fossil botany and zoology of the rocks associated with the coal of 
Australia, founded upon specimens sent to the Woodwardian Museum 
of Cambridge by the Rev. W. B. Clarke. Seventeen species of 
fossil plants, twelve of them considered as new, are described from 
the Mulubimba district, a portion of the Newcastle and Hawkesbury 
region. Of the ten genera noticed, two (Vertebraria and Zeugo- 
phyllites) are found in the coal-field of India, and one (Gleichenites) 
is considered provisionally as the same with Pecopteris odontopte- 
roides of Morris. All the other genera (with the exception of 
Phyllotheca, which has hitherto been only discovered in Australia) 
are well-known in the oolitic coal deposits of Yorkshire ; one species 
(Sphenopteris germana, M‘Coy) is stated to be scarcely distmguish- 
able from Pecopteris Murrayana (Br.) of the Scarborough shales. 
Mr. M‘Coy concludes that the evidence of fossil plants is im favour 
of these Australian coal deposits being of the age of the oolitic rocks 
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