Continents have moved over Earth’s long history. Some that are far apart today were once joined. Matching fossils and rock layers can provide clues. Their ages must also agree with the proposed history. In this activity, bring two evidence strips together and check whether their patterns line up. The strips are not actual maps of coastlines.
Earth and geology · Discover & try
How can evidence help rebuild Pangaea?
Reading level 1 of 5 · EarlyChange
Word help
Pangaea
A past supercontinent formed from landmasses now separated.
Fossil assemblage
A group of fossils occurring together in a geological context.
Reconstruction
An evidence-based arrangement of features as they may have existed in the past.
Watch · Try · Explain
See how it works
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Original evidence-strip analogy, not real coast outlines or a measured palaeogeographic map.
What to look for
- Compare fossil and rock bands together.
- Separate a coastline fit from geological evidence.
- Look for several independent matches.
Explain what you noticed
Two different continental fragments have matching outlines but fossils of very different ages. Is the outline fit alone enough?
Keep this idea: Independent fossil and rock matches strengthen a reconstruction beyond a shape fit alone.
Follow the sources
Source material checked 2026-10-28. Explanations and activities by Nepedia. Source links do not imply endorsement.
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