132 GEOLOGY. 
PHYLLITES CORIACEOUS, (n. sp.) 
Plate III, figs. 7 and 7a. 
Ph. folio lanceolato, utrinque acuto, integerrimo, levissimo, crasso; nervo medio crassissimo 
striato; nervis secundaris tenuibus, sepe obsoletis, simplicibus? e nervo primario sub angulo 
acuto egredientibus. 
A thick coriaceous leaf, with a very strong mid rib, in which the lateral veins are scarcely 
discernible. e margins are quite entire, the summit acute, the base decurrent on to the 
petiole. It is apparently generically identical with some leaves from the Cretaceous rocks of 
Blankenburgh, &c., compared by Geppert to those of Dellenia. They are from the Lower 
Cretaceous strata of the Moqui villages. 
s I am about to revisit the locality where these plants are found, I will defer all discussion 
of their botanical relations till more and better materials have been obtained. 
CLATHROPTERIS. Brong. 
A large number of fragments of a species of this genus were obtained in the lignite bed at 
Camp 92, (Moqui country,) but too imperfect for description. 
