Inside the Brain of a 319-Million-Year-Old Fossil Fish
SMRTR summary
A 319-million-year-old fossil fish discovered in a UK coalfield contains a remarkably preserved brain, helping scientists trace the family tree of ray-finned fishes. The fossil links early fish to Chondrostei — ancestors of today's sturgeons — and confirms that braincases can reliably reveal brain structure even without preserved soft tissue.
SMRTR provides this summary for quick context. The original article belongs to Nautilus.
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