Lesson plan

Ichthyosaur

Ichthyosaurs are extinct marine reptiles. This term can be used as a common name for the members of the following groups: * Ichthyosauria ** Ichthyosaurus, an extinct genus of ichthyosaurs * Ichthyopterygia, which contains Ichthyosauria * Ichthyosauriformes, which contains Ichthyopterygia

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Article summary

Ichthyosaurs are extinct marine reptiles. This term can be used as a common name for the members of the following groups: * Ichthyosauria ** Ichthyosaurus, an extinct genus of ichthyosaurs * Ichthyopterygia, which contains Ichthyosauria * Ichthyosauriformes, which contains Ichthyopterygia

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Discussion questions

  1. Summarise the article in your own words. Which single claim would you verify first, and why?
  2. Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
  3. If two sources disagreed about one of these facts, what would you need in order to trust one over the other?

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