Isurus oxyrinchus
Oxyrhincus- A GEM rare I. oxyrhincus teeth. Upper jaw position.
C616 (Right) Size: 15/16"
Oxyrhincus- A GEM rare I. oxyrhincus teeth. Upper jaw position.
C616 (Right) Size: 15/16"
Note - all teeth sizes are slant height unless otherwise noted. These are early Pliocene age teeth from the Bahia Inglesa Fm. These are excellent collector's teeth.
Note - A word on shark lineage: It is believed that Isurus retroflexus evolved into Isurus paucus, the extant Longfin Mako.