{"ok":true,"nota":{"id":"479eb37c9667106a","slug":"hallan-restos-del-cerebro-de-un-trilobite-de-hace-mas-de-500-millones--479eb3","titulo":"Hallan restos del cerebro de un trilobite de hace más de 500 millones de años","resumen":"Un fósil excepcionalmente bien conservado de un trilobite del Cámbrico inferior permitió identificar un órgano con organización bilateral dentro de su cabeza. Es el primer registro de un cerebro de este grupo.","fuente":"biorxiv","fuenteNombre":"bioRxiv · preprints","color":"#be2628","autor":"Strausfeld, N., Hirth, F.","url":"https://www.biorxiv.org/content/10.64898/2026.10.22.761110v1?rss=1","imagen":"/hoy/portada/479eb37c9667106a","tema":"ciencia","subtemas":["paleontologia","trilobites","cambrico","fosiles"],"entidades":["Yunnanocephalus yunnanensis","bioRxiv"],"formato":"dato","entretenimiento":false,"pubTs":"2026-10-27T00:00:00.000Z","indexTs":"2026-10-27T21:45:37.846Z","hash":"5f0f7d93b85e8899499b7d3994486da4c8a376fa9f2056f3e5e9654427c74f2a","tsa":{"time":"Oct 27 21:47:00 2026 GMT","provider":"freetsa.org","sobre":"sello"},"stats":{"views":0,"likes":0,"clicks":0,"dwell":0},"tipo":"normal","registro":"hallazgo","porQueImporta":"Los trilobites tuvieron miles de especies, pero su cerebro nunca había aparecido en el registro fósil. Conocerlo permite comparar cómo pensaban o percibían el mundo animales que vivieron hace más de 500 millones de años. Para cualquiera, es una ventana a una época en que la vida todavía estaba inventando sus formas, y muestra que lo que parece perdido para siempre a veces sobrevive en una piedra. El pasado guarda más de lo que suponíamos.","quienFirma":"Preprint en bioRxiv (equipo de paleontología; institución no identificada en la fuente)","confianza":"preprint","consulta":null},"sello":{"hash":"5f0f7d93b85e8899499b7d3994486da4c8a376fa9f2056f3e5e9654427c74f2a","sello":"704b84ca2ab7d5b98f50cdcab8831b0b8f9c85419545e683c403852c6ff7fc00","beacon":{"drand":{"cadena":"8990e7a9aaed2ffed73dbd7092123d6f289930540d7651336225dc172e51b2ce","ronda":6590219,"aleatorio":"51cbd4943e8cb3fd4f3b6a284c94f918d6e5a8e08289471b968b552ec8b3f6de","tiempo":"2026-10-27T21:46:30.000Z"},"nist":{"cadena":2,"pulso":2002043,"salida":"462E5A4EB267B249AECB5DD9140D97F890206341D81BD743EF05759E6C21A153B272C9545B206734CF3F8A5EF9DAD09DD7066B821552F19DD652F1BD05895FC9","tiempo":"2026-10-27T21:45:00.000Z"},"noAntes":"2026-10-27T21:46:30.000Z"},"verificacion":{"drand":true,"nist":true},"tsa":{"time":"Oct 27 21:47:00 2026 GMT","provider":"freetsa.org","sobre":"sello"},"original":{"titulo":"Cerebral Organization in the trilobite Yunnanocephalus yunnanensis","descripcion":"The clade Trilobita is recognized for its extraordinary morphological diversifications amidst a highly constrained body plan. This raises the question of whether trilobite nervous systems were conservative or comparably diverse. However, despite the identification of thousands of trilobite species and increasing evidence for neural preservation in other Paleozoic euarthropods, the recognition of a fossilized trilobite brain has remained elusive. Here we describe the identification of a trilobite brain and its spatially constrained position within its cranidium. An unusually preserved specimen of the lower Cambrian trilobite Yunnanocephalus yunnanensis reveals a bilaterally organized organ co","pubDate":"2026-10-27","url":"https://www.biorxiv.org/content/10.64898/2026.10.22.761110v1?rss=1"},"indexado":"2026-10-27T21:45:37.846Z"}}