Isla Colon Formation
Geology
Group: Bocas del Toro
Members: Ground Creek (1), La Gruta (5)
Lithologies: sandstone (1), "limestone" (6)
Paleoenvironments: reef, buildup or bioherm (5), perireef or subreef (1)
Age range: Early/Lower Pleistocene or 2.58000 to 0.77400 Ma