Description of two new fossil figs from Wyoming and Montana * 
F. H. KNOWLTON 
The fossil fruits herein described have been in hand for many 
years awaiting the completion of a large general work that should 
deal fully with the floras of certain of the Upper Cretaceous and 
Lower Tertiary formations of the Rocky Mountain region. Asa 
wealth of new material has yearly continued to pour in from these 
horizons, the completion of the work has been of necessity delayed, 
and it may still be some time before it can be finished. In the 
meantime it seems desirable that some of the more striking or 
interesting of the new forms should be published in order that 
they may be made available for the use of other workers in the field. 
The present paper, which will be followed by others, deals with 
two remarkable fruits of Ficus from Wyoming and Montana. 
Ficus Ceratops sp. nov. 
Palmocarpon n. sp. Knowlton, in Stanton and Knowlton, Bull. 
Geol. Soc. Am. 8: 136. 1897 
Fruits pearshaped or obovoid in shape, narrowed proximately 
into a thick neck (usually broken), and globosely expanded 
distally; walls thick and apparently woody in texture, usually 
provided with numerous, more or less prominent ribs which con- 
verge in the narrowed neck; apex rounded and obtuse or slightly 
depressed to a small pit or apparent opening into the interior; 
seeds absent, the interior being filled with coarse sandstone of the 
matrix. [See FIGURE.] 
These remarkable and admirably preserved specimens, of which 
there are nearly one hundred before me, were collected by the late 
J. B. Hatcher on June 24, 1881, in Converse County, Wyoming, 
in beds of the Lance formation, which contained abundant remains 
of the now well known horned dinosaurs. They were thought by 
the collector to be the bulbs of some monocotyledonous plant, and 
this supposed resemblance is by no means far fetched. They were 
all found within a very small area, and, according to Mr. Hatcher, 
each one when discovered was resting with the large globular 
* Published with the permission of the Director of the U. S. Geological Survey. 
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