The “Big Five” mass extinctions of the Phanerozoic Eon have long attracted significant attention from the geoscience community and the public. Among them, the Late Ordovician Mass Extinction (LOME) is ...

The Crinoidea, a class of marine echinoderms, have long captivated palaeontologists as one of the most enduring and diverse components of the marine fossil record. Their evolutionary history spans ...

Paleontologists recognize five big mass extinctions in the fossil record. At the end of the Ordovician period, about 443 million years ago, an estimated 86 percent of all marine species disappeared.

Rapid changes in marine oxygen levels may have played a significant role in driving Earth’s first mass extinction, according to a new study led by Florida State University researchers. About 443 ...

Since the beginning of time, Earth has created life and then wiped out most of it in catastrophic, ultra-destructive moments.

The early Palaeozoic Era records the initial biodiversification of the Phanerozoic. The increase in biodiversity involved drastic changes in taxon longevity, and in rates of origination and extinction ...

Mass extinction : a general view / Ashraf M.T. Elewa -- Late Ordovician mass extinction / Ashraf M.T. Elewa -- The end Ordovician : an ice age in the middle of a greenhouse / Curtis R. Congreve -- ...

Our planet’s first known mass extinction happened about 440 million years ago. Species diversity on Earth had been increasing over a period of roughly 30 million years, but that would come to a halt ...

Rapid changes in marine oxygen levels may have played a significant role in driving Earth's first mass extinction, according to a new study. Rapid changes in marine oxygen levels may have played a ...