Fóssil de criatura marinha ajuda a revelar origens da coluna vertebral

Fóssil de estranha criatura marinha ajuda a revelar origens da coluna vertebral

[{"selector":"#anim-75046f16-7830-4243-9ed0-eee4711de700","keyframes":{"opacity":[0,1]},"delay":0,"duration":1000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-12b9cb27-7b01-47fa-921c-6053b3c6177f","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-0ed65af8-d217-47b0-9eee-151d5be8f3e7","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-19db6c29-5175-44b3-ac64-16367b80d399","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] giovanni mussini/newssource

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[{"selector":"#anim-1bf0c19a-6a6d-4d3b-9909-bdcb290023f4","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-80909067-9773-45ff-bf42-db336ac5b4eb","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-2cc8fe3d-8e24-4d9f-ade7-8f256d84f9e6","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-4eb32b3e-20ef-488b-83da-b0ad48531097","keyframes":{"opacity":[1,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-88756dbd-b18f-4b51-8b9b-6dce2f2febce","keyframes":{"transform":["scale(3)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-92013c4e-a84b-48cc-905f-3a95f56b4681 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-31.249999886225726%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] Cientistas recentemente identificaram o cordão nervoso do animal usando um truque inusitado: eles viraram seus fósseis de cabeça para baixo foto/divulgação

[{"selector":"#anim-1dca5dfa-202b-4677-98fb-460708bba2b1","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-5f4e4c6c-488c-4c81-9236-a05ad1c7c3fa","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-0558fd9b-4d12-4017-8934-89b9faa9a497","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-ae8dfd34-17f7-4a5c-bfac-fab5ea6aa948 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-24.044642699646747%, 0, 0) translate(-25%, 0%) scale(1.5)","translate3d(0%, 0, 0) translate(0%, 0%) scale(1)"]},"delay":0,"duration":2000,"fill":"forwards"}] O paleontólogo Charles Doolittle Walcott encontrou pela primeira vez fósseis de Pikaia nos depósitos de xisto Burgess na Colúmbia Britânica em 1911 foto/diulgação

[{"selector":"#anim-6a93af4f-92ac-4b8e-a17b-4cb4d8c3e006","keyframes":{"transform":["translate3d(113.16615%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-bb29aa4b-901a-493d-a36e-9f8e2a6446da","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-1c810443-5d4e-4523-90e6-9ee47feef199","keyframes":{"transform":["scale(0.15)","scale(1)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"forwards"}] [{"selector":"#anim-bfac2a96-7e38-4117-8442-65a779c0f158","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-4118636b-c9f5-4b59-9e57-8b0a48aa229f","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-c5a4fcd5-f2f8-4135-9293-ab475d41b09c","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] O animal media aproximadamente 16 centímetros de comprimento e tinha um corpo achatado e sinuoso, e uma pequena cabeça, com dois tentáculos e franjada com brânquias externas foto/divulgação

[{"selector":"#anim-aa2dc6ac-1419-4e18-96c4-2a9212b6d71c","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-793f650b-1df8-4dde-9aa7-9e95d39b1a74","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-3a928f90-6128-4d35-918f-73fadabf8333","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-579d2392-f49f-4aa4-9436-5b833ef36932","keyframes":{"transform":["translate3d(-115.67398%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-e16700b4-9c94-4ae0-9069-e17f92cac8f6","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-b94a8826-430d-4b3a-89b7-4d0f7e0cda3f","keyframes":{"transform":["scale(0.15)","scale(1)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"forwards"}] [{"selector":"#anim-073e3a57-8003-4008-9b6e-d8067e072508 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-30.124999879399272%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] Estas foram originalmente consideradas como pernas rudimentares, então o animal foi posicionado com essas estruturas voltadas para baixo foto/divulgação

[{"selector":"#anim-72f9eb5e-24d5-48e9-a837-3f0bbebe6652","keyframes":{"opacity":[1,1]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-a2fb2c6a-7862-4571-9253-a13d2813ba3f","keyframes":{"transform":["scale(3)","scale(1)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-6704c86c-4b06-43f8-83ee-dd79b78eb3d3","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-0835c79d-e8b7-4e03-a749-69a626a327dd","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-6fe9b206-7b5c-4011-8e92-449c1a5a8fab","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] Em 2012, após décadas estudando fósseis de Pikaia, pesquisadores descreveram suas estruturas internas fossilizadas em grande detalhe crédito/giovani mussini

CNNBRASIL.COM.BR

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