JOURNAL ARTICLE

Hundreds of hidden fossils reveal squids' evolutionary origins.

  • Published In: Sciencemag.org, 2025. P. N.PAG 1 of 3

  • Database: Applied Science & Technology Source Ultimate 2 of 3

  • Authored By: Jacobs, Phie 3 of 3

Abstract

The article focuses on a new research study that reveals the evolutionary history of squids, indicating they began to dominate Earth's oceans much earlier than previously believed. Utilizing a technique called digital fossil mining, scientists ground down Cretaceous period rocks from Japan to uncover 263 squid beaks from 40 different species. This discovery suggests that squids originated around 100 million years ago and diversified significantly before the mass extinction event 66 million years ago. The findings indicate that by the Late Cretaceous, squids had become larger and more prevalent than ammonites and bony fishes, influencing ocean ecosystems significantly. [Extracted from the article]

Additional Information

  • Source:Sciencemag.org. 2025/06, pN.PAG
  • Document Type:Article
  • Subject Area:Earth and Atmospheric Sciences
  • Publication Date:2025
  • Accession Number:186294881
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