AP BIOLOGY

Detailed explanation-1: -Ichnofossils, also known as trace fossils, are geological records of the activities and behaviors of past life. Some examples include rock evidence of nests, burrows, footprints, and scat. These fossils are different from body fossils that preserve the actual remains of a body such as shells or bones.

Detailed explanation-2: -1. Name five kinds of trace fossils. Burrows, coprolites, tracks, trails, nests and footprints are examples of trace fossils.

Detailed explanation-3: -Evidence of Life Trace fossils are “prints and poop"-evidence of a living thing’s interaction with its environment, without any part of the actual organism. Footprints, trackways, swim traces, burrows or dens, root traces, and even coprolites (fossil feces) are examples of trace fossils.

Detailed explanation-4: -Trace fossils are formed when an organism makes a mark in mud or sand. The sediment dries and hardens. It is covered by a new layer of sediment. As the sediment turns to rock through compaction and cementation, the remnant becomes fossilized.

Detailed explanation-5: -Ichnology: Study of trace fossils (biogenic sedimentary structures). Ichnite: general term for a trace fossil. An important distinction to remember is that every mark made by an organism (or fossil) is necessarily a trace fossil.