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Mongolepidida

Mongolepidida is an order of primitive chondrichthyans (cartilaginous fishes) that lived during the Ordovician and Silurian periods of Asia and North America. They are only known from scales, so their appearance is largely unknown. The oldest of these scales, belonging to Solinalepis levis, have been dated back to the Sandbian age of the Ordovician, making mongolepidids some of the oldest chondrichthyans known to date.

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Article summary

Mongolepidida is an order of primitive chondrichthyans (cartilaginous fishes) that lived during the Ordovician and Silurian periods of Asia and North America. They are only known from scales, so their appearance is largely unknown. The oldest of these scales, belonging to Solinalepis levis, have been dated back to the Sandbian age of the Ordovician, making mongolepidids some of the oldest chondrichthyans known to date.

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  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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