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ZI.





            The  teeth  ar~  smaller  and  have  much  less  cement  than  is  the  case  with

            Lepus.  In  size  they  are  comparable  to  those  or  either  Archeola.gu.s  or

            Hy-polagu.s •. _There  is  little  cement  on  any  of  the  teeth,  a  character  which

            resembles  Archeolagu.s.

                     The  lower  molariform  teeth  have  reentnant  angles  which  extend

            almost  across  them.  An  upper  molariform  tooth  has  a  reentrant  angle

            extending  little  over  half way  across  the  crown  with  finely  crenulated

            margins.  '!'his  tooth  is  similar  to  those  d:n  Hypola~s.  Another  upper

            molariform  tooth  has  a  ree~trant  angle  extending half way  across  the

            crown  but  possessing  smooth  margins.  Exterior  to  the  outer  end  of  the

            reentrant  angle  is  an  isolated  loop  of  enamel,  a  primitive  feature.

            These  characters  do  not  serve  to  identify  the  genus  to  which  the  Mint

            Canyon  specimen  should  be  assigned.


                                           MASTODON  REMAINS

                          No  complete  teeth  could  be  assembled  from  the  fragments

            collected hence  the  arrangement  of  the  individual  tubercles  could  not

            be  determined.  the  size  is  accordant  with  Tetrabelodon.  The  enamel

            thickness  averages  6  mm.



                                           AVIAN  REW.AINS

                          A proximal  ~ortion  of  a  claw  possessing  a  bony  prominence

            on  the  inferior  surface  is  the  sole  indication  of  the  presence  of  birds,

            It  is  narrow  transversely  and  deep  vertically.


                                          TESTUDINATE  RE:lAINS

                            These  include  portions  of  carapace  and  plastron as  well  as

            a  portion  of a  limb  bone.  Proportions  are  quite  large.  It  exceeds  Testudo

            mohavense  from  the  3arstow  in  size.  The  carapace  is  4  cm,  thick  at  the

            middle.
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