Dinosaur Fossil in Rock — Brown, Neutral

1600 × 1055

Red Starfish on Rock — Natural

1920 × 1200

Trilobite fossil in rock

1280 × 1024

Red Starfish on Rock — Natural, Photograph

1600 × 1000

fossil trilobite in rock

2272 × 1704

Hobbits in a cave with a creature

1200 × 773

fossilized trilobite in rock

4368 × 2912

Smooth River Stones — Brown, Natural

1200 × 750

Prehistoric sea creatures

1280 × 894

cracked rock formation

2312 × 1526

Trilobite Fossil — Brown, Dramatic

2000 × 1333

Colorful shell in dark crevice

1200 × 960