| Today Me and Roz hunted a Mingus shale formation exposure
out west. We found lots of "Petrodus" dermal denticles and
other goodies. It is unclear if "Petrodus" denticles come
from one species of shark (or ray) or several. See also our 2 Feb 2008 fieldtrip. |
Lance hunting.
 (pics by Roz) |
Petrodus sp. dermal denticles. 
  |
Petrodus sp. dermal denticles.   |
Roz hunting.
 |
Crinoid cup basal plate and Roz's Trepospira sp. snails
 (pic by Roz) |
Petrodus sp.
dermal denticles.
 |
| Here's some pics of my other stuff taken at home: |
Edestus sp.? shark spine
 |
Petrodus sp. shark denticles:
 |
Leda bellastriata (or Phestia) clam
and unknown ammonoid
 |
Sandalodus sp.? shark tooth (top)
 |