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Un nuevo elpistostegalian del Devónico tardío del Ártico canadiense
Thomas A Stewart1,2, Justin B Lemberg1, Ailis Daly1
1Department of Organismal Biology and Anatomy, University of Chicago, Chicago, IL, USA.
Nature
|July 21, 2022
Resumen
Un nuevo descubrimiento de fósiles revela una diversidad inesperada en parientes de peces antiguos, que muestran adaptaciones para nadar en lugar de movimiento terrestre cerca del origen de los vertebrados con extremidades.
Área de la Ciencia:
- Paleontología
- Biología evolutiva
- Anatomía comparada
Sus antecedentes:
- Comprender el origen de los vertebrados con extremidades requiere estudiar a sus parientes más cercanos, los elpistostegalios.
- Estudios previos sobre elpistostegalios como Tiktaalik roseae revelaron cambios de transición clave, pero algunas pruebas fósiles sugirieron una mayor diversidad de lo reconocido.
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