Identifier: sixthannualrepor00geol (find matches)
Title: Sixth annual report of the United States geological survey of the Territories, embracing portions of Montana, Idaho, Wyoming, and Utah : being a report of progress of the explorations for the year 1872
Year: 1873 (1870s)
Authors: Geological and Geographical Survey of the Territories (U.S.) Hayden, F. V. (Ferdinand Vandeveer), 1829-1887
Subjects: Botany Zoology Meteorology
Publisher: Washington : G.P.O.
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Biodiversity Heritage Library

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
iarity of their extending bejoud the nareal orifices, and the terminalcone of the nasals is not separated from them by suture, but by a grooveonly. The question is decided in favor of their being nasals, by thosebones as preserved in Eohasileus ))r€ssicornis^ Cope, where the lobe isrepresented by a tubercle only on the side of a continuous nasal. Theimmense length of the snout in Loxolophodon looks as though the nasalbones had extended themselves forward, so as to ossily the basal por-tions of an elephantine proboscis. The frontals descend behind the horns, with a very obtuse or roundedcontinug;tion, to the inner side of the fossa, and without any superciliarymargin. They form with the posterior part of the nasals a shallow me-dian ba.sin. The suture with the parietals is very indistinct, but if Ihave truly discovered it, it forms another posteriorly directed chevron,and leaves but a narrow sux)erciliary portion of the frontals. Above the 11* S* (Sf^k^kiiSuirteg nf ilrc Itatilari?^.
Text Appearing After Image:
LOXOLOPHODON CORNUTUS COPE Vs nat.Si^e. Til* Sitvclair&SonlrthPlwIa GEOLOGICAL SURVEY OF THE TERRITORIES. 569 postglenoid processes the parietals rise again to the transverse occipitalcrest, but to what height is uncertain. At the mastoid region, the cra-nium widens a little, and is excavated at the sides by the temporal fossae,year where the lateral and posterior crests join the inferior ridge-likeborder of the temporal fossa, in front of a position occupied by a knobin E. j)7essicornis, is a strong horn-core with sub-cylindric base. Itstands obliquely backwards towards thejunction of the inferior squamo-sal and transverse crests, and is connected to these by an oblique ridge,one side of which is marked with irregular, short, longitudinal rugosities.At the base of these elevations are three sinuses. This portion wasfound close to the skull, but separated from it, and the precise mode ofits attachment has not been discovered by actual fit. The occiput rises upwards for four inches

Note About Images