Friday, January 24, 2020

Trilobite Migration or Conga Line?

Ampyx priscus in linear formation (Moroccan Lower Ordovician Fezouata Shale). Credit: Jean Vannier, Laboratoire de Geologie de Lyon: Terre, Planètes, Environnement (CNRS / ENS de Lyon / Université Claude Bernard Lyon 1)

Arthropod fossils dating back 500 million years show the creatures died in an orderly line 'while migrating'

Fossils of ancient arthropods discovered in linear formation may indicate a collective behavior either in response to environmental cues or as part of seasonal reproductive migration. The findings, which are being published in Scientific Reports this week, suggest that group behaviors comparable to those of modern animals existed as early as 480 million years ago.

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