Trace fossil

High school (ages 12+)
History & Culture

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/trace-fossil

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the scientific discipline?Ichnology, the study of trace fossils and modern biological traces
2. What is the classification basis?Form genera based on morphology and inferred ethology (behavior), not biological affinity
3. Why are trace fossils important?They show the actions and behaviors of animals, like how they moved or ate, which body fossils can’t reveal.
4. How do trace fossils form?An animal makes a mark on soft mud or sand, the mark is quickly covered by more sediment, then the layers harden into rock, keeping the mark inside.

Ichnofossil: A fossil representing the preserved evidence of an organism's activity, rather than its body.
Ethology: The scientific study of animal behavior, crucial for interpreting the functional significance of trace fossils.
Bioerosion: The destruction or excavation of hard substrates by living organisms, often preserved as borings.
Ichnofacies: A distinct assemblage of trace fossils that characterizes a particular depositional environment.