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Pistas de tetrápodos del período Devónico Medio temprano de Polonia
Grzegorz Niedźwiedzki1, Piotr Szrek, Katarzyna Narkiewicz
1Department of Paleobiology and Evolution, Faculty of Biology, Warsaw University, 2S. Banacha Street, 02-097 Warsaw, Poland.
Nature
|January 8, 2010
Resumen
Nuevas huellas fósiles revelan que los primeros tetrápodos surgieron 18 millones de años antes de lo que se pensaba. Este descubrimiento remodela nuestra comprensión de la evolución de los vertebrados y la transición pez-tetrápodo.
Área de la Ciencia:
- Paleontología Paleontología.
- Evolución de los vertebrados Evolución de los vertebrados
- Período Devónico Período Devónico.
Sus antecedentes:
- El registro fósil de los primeros tetrápodos, vertebrados con extremidades, incluye fósiles de cuerpos y huellas.
- Los fósiles de cuerpos de tetrápodos más antiguos son del Devónico Tardío, precedidos por peces de transición como Tiktaalik.
- Los reclamos anteriores de pistas de tetrápodos más antiguos fueron controvertidos con respecto a la edad y la identidad del fabricante de pistas.
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