Johnson County, Texas
May 10, 2014

Today explored a large exposure of Grayson Shale with teacher friend "Pete".   We found shark teeth and a couple nicely detailed echinoids.
Goniophorus scotti
Goniophorus scotti
Goniophorus scotti
Goniophorus scotti
Goniophorus scotti
Goniophorus scotti  (2nd specimen)
Cretalamna appendiculata
Cretalamna appendiculata  (same)
 
Transition form the Grayson Shale into the overlaying Woodbine sands. Transition form the Grayson Shale into the overlaying Woodbine sands. Transition form the Grayson Shale into the overlaying Woodbine sands.