Fossil tracks in the Alps help explain dinosaur evolution

THAT the dinosaurs went out with a bang is well known. About 66m years ago a large space rock hit what is now southern Mexico. As a consequence, and with the assistance of some enormous volcanic eruptions on the other side of the planet, the terrible lizards were consigned to history. That left the world open for the rise of mammals. What is less well known is that the dinosaurs themselves rose in circumstances similar to those that felled them. The animalsí long reign through the Jurassic and Cretaceous periods was enabled by another, albeit smaller, period of mass extinction, which happened between 234m and 232m years ago during the Triassic period. This extinction is thought to have been caused by a period of unstable climate called the Carnian Pluvial Episode (CPE), in which the climate went from dry, to wet, to dry again four times over the course of 2m years. As is often the case in matters palaeontological, the effects of such changes are easiest to see at sea, because most...

Fossil tracks in the Alps help explain dinosaur evolution

THAT the dinosaurs went out with a bang is well known. About 66m years ago a large space rock hit what is now southern Mexico. As a consequence, and with the assistance of some enormous ...

Thu 19 Apr 18 from The Economist

Mass extinction event 232 million years ago paved the way for the dinosaurs

The dinosaurs started and ended with a bang.

Tue 17 Apr 18 from ZME Science

The Rise of the Dinosaurs

It’s clear from the fossil record that at times in the history of Earth there have been massive and geologically rapid changes in the assemblage of life. For each such change, however, ...

Tue 17 Apr 18 from NeuroLogica

Mass extinction paved the way for rise of the dinosaurs

New research suggests dinosaurs were able to assume a dominant position on Earth due to a series of mass extinctions occurring some 232 million years ago.

Mon 16 Apr 18 from UPI

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