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Línea del Tiempo de la Vida en la Tierra
 

Crossword Puzzle

Línea del Tiempo de la Vida en la TierraOnline version

Eras, fósiles y conceptos clave

by Michael Manuel Heybrook Díaz
1

Período anterior a la historia con vida compleja, abarca desde la formación de la Tierra hasta antes de las eras fósiles.

2

Edad con flora y fauna marina y terrestre temprana, se consolidó la vida multicelular y el supercontinente inicial.

3

Época de dinosaurios y primeros mamíferos; fraccionamiento de un gran continente.

4

Período actual de enfriamiento y evolución de mamíferos y seres humanos.

5

Estructuras minerales formadas por comunidades de microorganismos fotosintéticos.

6

Fósiles marinos artrópodos muy comunes en rocas antiguas.

7

Supercontinente que unía la mayor parte de las tierras emergidas hace millones de años.

8

Fósiles de moluscos cefalópodos con concha en espiral.

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