540-Million-Year-Old Fossil Rewrites Evolution: Salterella's Unique Skeleton
Автор: One Voice Universe
Загружено: 2025-11-12
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Cambrian Period, fossils, evolution, Salterella, ancient skeletons, paleontology.
Dive into the fascinating world of early Earth's 'skeleton age' during the Cambrian Period, where animals first developed mineralized shells and skeletons. This video explores Salterella, a 540-million-year-old cone-shaped fossil that breaks the rules of evolution with its double-layered shell construction.
Unlike other Cambrian creatures, Salterella didn't just build one type of shell—it created an outer cone and filled the inside with carefully selected mineral grains, preferring titanium-rich materials for strength. Paleontologists have long struggled to classify this mysterious organism, originally grouping it with squids, worms, and jellyfish ancestors.
New research reveals Salterella likely belongs to the cnidarian group, relatives of modern corals and sea anemones, providing fresh insights into early animal evolution. Learn how this fossil's unique biology hints at ancient feeding and stabilization mechanisms, and why it's a key piece in the puzzle of life's earliest innovations on Earth.
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