Virtual Fossils from 425 Million-year-old Volcanic Ash

The first major diversification of animal life took place during what paleontologists and evolutionary biologists refer to as the Cambrian Explosion. Deeper burrowers appeared in abundance during the succeeding period, the Ordovician, at which point buried carcasses became more vulnerable to scaveng...

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Hlavní autoři: Briggs, D, Siveter, D, Sutton, MD
Médium: Journal article
Jazyk:English
Vydáno: 2008