Horseshoe crab - Wikipediahttps://en.wikipedia.org/wiki/Horseshoe_crab
Horseshoe crabs
They Put the Bite in Trilobite - The New York Timeshttps://www.nytimes.com/2021/01/30/science/trilobites-shells-fossils.html
Cambrian periodHorseshoe crabsOlenoides serratusRedlichiaRedlichia rexSidneyia inexpectansTrilobites

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Horseshoe crabs
Xiphosurida

Names and synonyms

  • Horseshoe crabs
  • Limulidae