1915.| Matthew and Granger, Lower Focene Wasatch and Wind River Faunas. 341 
the posterior and anterior angles of the tooth are tiny cusps produced on 
the cingulum. The strong conical deuterocone is placed posteriorly, op- 
posite the tritocone, instead of between the protocone and the tritocone as — 
in p*. An elevated tip of the cingulum occupies the position of the proto- 
conule in p’; p* has the protocone slightly larger than the tritocone and 
there is a strong protoconule. The p! is placed close behind the canine. 
There is a considerable diastema between p! and p? and a shorter one be- 
tween p? and p’. | 
5 
Fig. 9. Phenacodus intermedius, crown and external views of unworn maxillary teeth. 
Paratype, Gray Bull beds, Bighorn basin, Wyoming. 
Measurements of paratype, No. 15777. 
mm. 
ae 51 eaNaRE tibia Pine RRC aU Ny uN OMS Mie Ls ha tei Rieko cena gny eLh es fa~ .. (approx.):” 
C ait... DOsbSMIART a ERE oe eee home Pea ere: teen 7.8 
ert ae ‘ MER Geri GAS Ng Gy, Rs ree CALNE apie aOR Se Re ea De oa 6.2 
C length, from base of enamel, outside: : 24.0% o-4 hada eee 12.7 
p... long. Game eet ae ek ine elie eee 5. 
p' length, from base of. enamel, QUleIIes i530. ie a chs 8 ae eee 6.3 
yp? Jom. Gig. oan es ane eee tnt she tal pent 8. 
Derek) aE PE Fee Sele ai iy ase Sa ea ho hea a an NE a ea APES 5.6 
Two badly flattened skulls (Nos 15268 and 15765) have teeth agreeing 
closely with the type in size and the reduction of metaconules on m*, but 
the skull, as nearly as can be judged in this crushed condition, does not 
show a corresponding reduction in length for P. primavus. The better 
