Primary Sedimentary Structures
(continued)
Mudcracks
Recent mudcracks along a dried up stream bed
Silurian mudcracks on the bottom of a sandstone bed
Biogenic Structures
- Bioturbation
- Trace Fossils
Bird Track
Snake Trail
Feeding Trace
Burrow
last updated 1-2-98
All original material copyright (c) 1998 by Annabelle Foos. All rights reserved.