Trace fossil
Fossil
Also called Ichnofossil and Cruziana
About it
Signs of life rather than body parts: tracks, trails, burrows, borings, bite marks, and dung. They record behaviour and often survive where shells and bones don't; Cruziana, a trilobite trail, is a classic.
- Type
- Fossil (trace fossil)
- Group
- Trace fossil
- Colours
- grey, brown, tan, red
- Transparency
- opaque
- Periods
- Cambrian, Ordovician, Silurian, Devonian, Carboniferous, Permian, Triassic, Jurassic, Cretaceous, Paleogene, Neogene
Typical values: real specimens vary. For more, see mindat.org.