Post Profile

Mammals hit harder than thought by end-Cretaceous extinction

Mammals, unlike the remaining nonavian dinosaurs and many other animals, are thought to have fared relatively well through the massive meteorite impact and protracted volcanism at the end of the Cretaceous 66 million years ago. After the extinction, mammals went on to dominate terrestrial ecosystems. But new research indicates that mammals might have taken a bigger hit than paleontologists have realized: Instead of about 75 to 85 percent of species going extinct, as prior studies suggested, it looks like about 93 percent of all mammal species may have gone extinct during the Cretaceous-Paleogene (K-Pg) extinction.
read more


Related Posts

New, tighter timeline confirms ancient volcanism aligned with dinosaurs' extinction

Academics / General Science : ScienceDaily: Science Society

A definitive geological timeline shows that a series of massive volcanic explosions 66 million years ago played a role in the extinction event that claimed Earth's non-avian dinosaurs, and challenges the dominant theory that a meteo...

Evidence that Earth's first mass extinction was caused by critters not catastrophe

Academics / General Science : ScienceDaily: Science Society

The Earth's first mass extinction event 540 million years ago was caused not by a meteorite impact or volcanic super-eruption but by the rise of early animals that dramatically changed the prehistoric environment.

Mammals diversified only after dinosaur extinction left space

Academics / General Science : ScienceDaily: Science Society

Humans' early mammal relatives likely diversified 66 million years ago, after the extinction of dinosaurs opened up space for animals such as big cats, horses, elephants and eventually apes to evolve.

Asteroid that wiped out dinosaurs may have nearly knocked off mammals, too

Academics / General Science : Science Codex

The extinction of the dinosaurs 66 million years ago is thought to have paved the way for mammals to dominate, but a new study shows that many mammals died off alongside the dinosaurs. Metatherian mammals--the extinct relatives of l...

Princeton release: Massive volcanoes, meteorite impacts delivered one-two death punch to dinosaurs

Academics / General Science : Science Codex

A cosmic one-two punch of colossal volcanic eruptions and meteorite strikes likely caused the mass-extinction event at the end of the Cretaceous period that is famous for killing the dinosaurs 65 million years ago, according to two ...


Copyright © 2016 Regator, LLC