8 lugl 250000000 anni a. C. - Extinct Trilobites
Descrizione:
 The trilobites may have gone extinct (along with 95% of marine species) during the mass extinction at the end of the Permian period, but that doesn�t mean that they were a failure. On the contrary, the trilobites survived for more than 250 million years (longer than the dinosaurs), and dominated seafloor ecosystems for much of this time. 
Aggiunto al nastro di tempo:
Data:
8 lugl 250000000 anni a. C.
Adesso
 ~ 5883516 years ago 
Immagini:
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