. Bulletin of the Department of Geology. Geology. 1913] Merriam: Notes on the Canid Genus Tephrocyon 369 The specimen from the Cedar Mountain region of middle Nevada referred to above consists of the greater portion of a single lower carnassial (see fig. 10) from Stewart Valley (local- ity 2027). It is almost identical in form with M3 of the type specimen of Tephrocyon kelloggi from Virgin Valley, Nevada. The very slight differences between these two specimens are due in a large part to the fact that the Stewart Valley specimen is unworn, while the type has been subjected to moderate wear. In
. Bulletin of the Department of Geology. Geology. 1913] Merriam: Notes on the Canid Genus Tephrocyon 369 The specimen from the Cedar Mountain region of middle Nevada referred to above consists of the greater portion of a single lower carnassial (see fig. 10) from Stewart Valley (local- ity 2027). It is almost identical in form with M3 of the type specimen of Tephrocyon kelloggi from Virgin Valley, Nevada. The very slight differences between these two specimens are due in a large part to the fact that the Stewart Valley specimen is unworn, while the type has been subjected to moderate wear. In addition to showing closely similar dimensions, the Stew- art Valley specimen resembles M, of the type of T. kelloggi in the very long heel, and the very large metaconid. There is also close cori'espondence in a number of minor details, as in the posi- tion and form of the small inner and outer tubercles intermediate between trigonid and talonid. the presence of a faint ridge of the cingulum on the outer side of the heel, and the development of a faint ridge on the outer portion of the posterior end of the heel. Comparative Measurements No. 19767 T. kelloggi M , anteroposterior diameter of heel on inner mm. Mjt greatest transverse diameter of heel 7. Species op Uncertain Relationships Several fragmentary specimens representing forms in or near Tephrocyon have been described in recent palaeontologic papers. The exact position of the forms represented by this material can not be satisfactorily determined until better speci- mens are Fig. 14. Tephrocyon?, sj>. Part of lower jaw with and M^. External view X %, occlusal view of teeth natural size. (Amer. Mus. Nat. Hist,, no. 13843). (After Matthew and Cook).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original University of California
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