Browsing the "Triassic" Category

The Triassic period is a division of earth’s history spanning from around 252 to 201 million years ago, and during which global faunas were radically reorganised in the wake of the Permian mass extinction. The climate of the Triassic was typically arid and hot. During this period, the supercontinent of Pangaea began to gradually break apart, opening the Tethys Ocean. Recovery from the Permian mass extinction lasted up to 10 million years. In the oceans, surviving invertebrates including corals, cephalopods (such as ammonites) and echinoderms began to diversify. Marine reptiles became abundant and reached colossal sizes by the end of the Triassic. On land, archosaurs, a group of reptiles including crocodilians and dinosaurs, began to flourish. Mammal-like reptiles, on the other hand, became smaller and less diverse. The end Triassic is also characterised by a mass extinction event. Around 76% of all species, including the conodonts (a successful group of jawless fish), many archosaurs (with the notable exception of dinosaurs) and large amphibians were wiped out.

Cretaceous

Episode 108: Plesiosaurs

Published on March 1st, 2020 | by David Marshall

Plesiosaurs are some of the most easily recognisable animals in the fossil record. Simply uttering the words ‘Loch Ness Monster’ can conjure a reasonably accurate image of what they look like. Thanks to palaeoart, it’s also [&hellip... Read More


Blog

A Look at Prosauropods: The Forgotten Dinosaurs

Published on May 28th, 2019 | by Guest Blogger

As with most children who are fascinated by dinosaurs, Tyrannosaurus, Triceratops, and Stegosaurus were amongst the first dinosaurs I learnt of. But as I grew older, another group of dinosaurs began to pique my interest, a [&hellip... Read More


Mesozoic

Episode 92: Squamate Origins

Published on May 30th, 2018 | by Liz Martin-Silverstone

Squamates are a group of reptiles that include lizards and snakes, with the earliest fossils occurring in the Jurassic, despite molecular studies dating the group back to the Triassic. The study of their origins has been [&hellip... Read More


Cretaceous

Episode 85: Ichthyosaurs

Published on January 7th, 2018 | by David Marshall

Ichthyosaurs are large marine reptiles that existed for most of the Mesozoic Era. The most familiar forms superficially represent dolphins, but some earlier ichthyosaurs were more eel like. They could attain huge proportions, with some genera [&hellip... Read More


Mesozoic

208-million-year-old giant amphibian discovered in Greenland

Published on June 17th, 2017 | by David Marshall

A new species of Cyclotosaur, a giant salamander-like amphibian, has been described from the Late Triassic rocks of East Greenland. Cyclotosaurs are temnospondyl amphibians, known from other Late Triassic deposits in Germany, Poland and Svalbard, but [&hellip... Read More


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