Ilmuwan Temukan Fosil Jaringan Lunak Sangat Langka dari Makhluk Laut Berusia 450 Juta Tahun

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Ilmuwan Temukan Fosil Jaringan Lunak Sangat Langka dari Makhluk Laut Berusia 450 Juta Tahun 07.07.2026

Gizmodo

Para ilmuwan telah menemukan fosil crinoid *Dendrocrinus simcoensis* yang sangat langka yang mengawetkan jaringan lunak, berasal dari sekitar 450 juta tahun yang lalu. Ditemukan di sebuah museum lokal di Montreal, Quebec, spesimen ini merupakan penemuan kedua jenis ini yang pernah ada, melampaui usia contoh sebelumnya yang telah diketahui. Peneliti utama Lena Cole dari University of Oklahoma mencatat bahwa pengawetan semacam itu adalah peristiwa "satu-berjuta", yang kemungkinan disebabkan oleh makhluk tersebut yang terkubur dengan cepat di dalam lumpur halus, yang menghalangi oksigen dan memungkinkan mineral melapisi jaringan tersebut. Penemuan ini, yang diterbitkan dalam Royal Society Open Science, memberikan wawasan kritis mengenai ekosistem laut Paleozoikum. Dengan mempelajari kaki tabung (tube feet) yang terawetkan, para peneliti dapat membandingkan perilaku punah dengan kerabat modernnya, menawarkan sekilas pandangan unik tentang bagaimana pola evolusi dan interaksi ekologis telah berubah sepanjang sejarah Bumi.

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