Roughly 201 million years ago, drastic changes extinguished many forms of life and led to conditions that allowed the ...

The Triassic period stands out in Earth’s history as the time when dinosaurs first evolved. It was followed by the Jurassic and Cretaceous periods – at the end of the latter, the dinosaurs ...

Learn about the time period that took place 251 to 199 million years ago. 3 min read The start of the Triassic period (and the Mesozoic era) was a desolate time in Earth's history. Something—a ...

Dinosaurs long dominated Earth's land ecosystems with a multitude of forms including plant-eating giants like Argentinosaurus ...

They found a pattern with the same characteristics on a fossil unearthed in Utah from a stratum dating back to the early Triassic Period (250 million years ago). Sea lilies are sometimes called ...

Many think dinosaurs first emerged on land well south of the equator that now forms part of Argentina and Zimbabwe, but they ...

Scientists are suggesting that dinosaurs may have originated in regions of the modern-day Sahara desert and Amazon rainforest, areas that were once part of the southern supercontinent Gondwana. Their ...

The first dinosaurs may have evolved near the equator, and not in the southwest of the supercontinent Gondwana, as ...

All continents during the Triassic Period were part of a single land mass called Pangaea ... Despite this separation, similarities in their fossil records show that there were some land connections ...

Ichthyosaurs first evolved around 250 million years ago during the early Triassic period. This period marked the beginning of ...

Plesiosaurus, an early plesiosaur, was about 4.5 metres long with a broad, flat body and a short tail (see graphic). Plesiosaurs appeared in the late Triassic period about 203 million years ago ...

It's known as the Carnian Pluvial Episode (CPE). During the Late Triassic period, all of Earth’s land was clumped together in ...