302 The American Geologist. May tal 
and at Arkalon. Above the chalky beds there are sandstones 
usually thin bedded. Near the channel of the Cimarron they 
outcrop in a low anticline and to the east of the stream occur 
in a ledge exhibiting low dips. 
In searching for fossils at this locality nothing of special 
significance was found. In the hill north of the river where 
the chalky beds are quarried there is a thin layer of clay over- 
lying the limestone in which were found the condyle of a 
large mammal, and the ramus of a carnivore jaw. 
Sketch of tracks in sandstone, one-fourth natural size. 
The relation of the mortar beds to those above described 
is plainly one of unconformity, the coarse “mortar bed” sand- 
stones lying discordantly upon the upturned edges of the 
series. At the time I observed the beds the dip was regarded 
by me as indicative of structure which might be connected 
with the artesian conditions of the Meade basin which lies to 
the northeast along Crooked creek, and I called the attention 
of Mr. Haworth to the locality thinking that it might be de- 
scribed in connection with the geology of the Meade artesian 
area, but no note has thus far been made of it. 
It is probable that the formation described by F. W. 
Cragin (American Geologist, Vol. VIII, 1891, p. 29), as “A 
Leaf-bearing terrane in the Loup Fork,” occurring on the 
