Descoberta: Fóssil Trilobita foi preservado graças a cinza vulcânica

Por Fusne.com / Alan Corrêa Por Fusne.com / Alan Corrêa 28/06/2024 Ciência Ciência

Uma erupção vulcânica há meio bilhão de anos no Marrocos preservou fósseis de trilobitas em cinza vulcânica. Essa preservação revelou detalhes anatômicos raros desses animais antigos.

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As trilobitas, encontradas articuladas e não distorcidas, foram soterradas instantaneamente por cinzas piroclásticas em um ambiente marinho raso, permitindo uma conservação rara.

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Liderada por Abderrazzak El Albani, a análise destacou a importância dos depósitos de cinzas vulcânicas em ambientes marinhos para a preservação de fósseis com anatomia interna intacta.

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A Formação Tatelt, no Marrocos, abriga os fósseis de duas espécies de trilobita. Usando microtomografia de raios-X, os pesquisadores reconstruíram sua anatomia em três dimensões.

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Além dos trilobitas, pequenos braquiópodes foram encontrados em simbiose com eles, preservados em suas posições de vida, sugerindo que morreram juntos, provavelmente enterrados vivos.

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