Scientists just solved a 160-million-year fossil mystery “I’ve never seen anything like it”

ScienceDaily
Apr 15, 2026, 2:02 am129 ptsTrending
A rare fossil discovery is shedding light on the “missing years” of early sponge evolution. Scientists found a 550-million-year-old sponge that likely lacked hard skeletal parts, explaining why earlier fossils are so scarce. This supports the idea that the earliest sponges were soft-bodied and rarely…

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