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Browsing Tag

Silurian

2 posts
SScience
Life reconstruction of Sacabambaspis janvieri, a species of armored jawless fish that lived during the Ordovician period. Image credit: Kaori Serakaki, OIST.
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Study: Late Ordovician Mass Extinction Cleared Way for First Fishes

  • January 12, 2026
A long-standing mystery in vertebrate evolution — why most major fish lineages appear suddenly in the fossil record…
SScience
Ciurcalimulus discobolus, holotype. Scale bars - 5 mm. Image credit: James C. Lamsdell, doi: 10.1098/rspb.2025.0874.
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Paleontologist Discovers First Known Silurian Horseshoe Crab

  • August 29, 2025
Horseshoe crabs are an ancient lineage with an evolutionary history stretching back 450 million years (Ordovician period) and…
Ireland
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