Browsing the "Mesozoic" Category

The Mesozoic era, meaning “middle life”, is a division of earth’s history spanning from around 252 to 66 million years ago. It is subdivided into the Triassic, Jurassic and Cretaceous periods. The beginning of the Mesozoic is characterised by a long phase of recovery following the end Permian mass extinction. The end of the Mesozoic is marked by the Cretaceous/Paleogene extinction event which wiped out the dinosaurs among other groups.

Cretaceous

A new fireworm from the Cretaceous of Lebanon

Published on November 17th, 2015 | by David Marshall

A new fossil from Lebanon is named today in BMC Evolutionary Biology as Rollinschaeta myoplena. We spoke to lead author Luke Parry about this interesting fossil and its unusual namesake. “Due to their soft bodies polychaete annelids (the marine relatives [&hellip... Read More


Cretaceous

Episode 55: Pterosaurs

Published on November 15th, 2015 | by Liz Martin-Silverstone

Pterosaurs were the first vertebrates to achieve powered flight, and lived in the skies above the dinosaurs during the Mesozoic. They’re often mistakenly identified as dinosaurs, but are in fact a separate, closely related group. This [&hellip... Read More


Cenozoic

Aquatic adaptations in crocodylomorphs

Published on November 9th, 2015 | by Liz Martin-Silverstone

Crocodylomorphs today are not thought to be the most diverse group, consisting of all semi-aquatic forms of alligators, crocodiles, and gharials. However, the fossil record shows us that this group has a very long and diverse evolutionary [&hellip... Read More


Cretaceous

Ornithomimus feather distribution

Published on November 2nd, 2015 | by Liz Martin-Silverstone

For some time now, we’ve known that most (if not all) theropod dinosaurs were feathered, but we’re still filling in the blanks of feather colouration, types of feathers, and how the feathers were distributed on the [&hellip... Read More


Mesozoic

Episode 54: Crystal Palace Dinosaurs

Published on November 1st, 2015 | by Joe Keating

The ‘Crystal Palace Dinosaurs’ are a series of sculptures of extinct animals including dinosaurs, other extinct reptiles and mammals, which can be found in the grounds of the Crystal Palace in London. Commissioned in 1852, these [&hellip... Read More


Cretaceous

Episode 53: Ankylosaurs

Published on October 15th, 2015 | by Liz Martin-Silverstone

Ankylosaurs are a group of non-avian dinosaurs best known for their armour, tank-like bodies, and sometimes large tail clubs. First appearing in the Jurassic, they were common in Late Cretaceous ecosystems, with several species known from [&hellip... Read More


Cretaceous

Evolution of the ankylosaur tail club

Published on September 8th, 2015 | by Liz Martin-Silverstone

Ankylosaurs are the large, tank-like, armoured dinosaurs that often had a large boney club at the end of their tail. The club is formed of osteoderms, dermal bone that has fused together at the end of the [&hellip... Read More


Cretaceous

New iguana from Brazil

Published on August 26th, 2015 | by Liz Martin-Silverstone

A new iguanian fossil described in Nature Communications from the Late Cretaceous of Brazil is changing traditional views on early lizard evolution in the southern hemisphere. Lizards are split into two groups: acrodontan lizards (found in [&hellip... Read More


Jurassic

Triassic-Jurassic Extinction

Published on August 11th, 2015 | by Liz Martin-Silverstone

A new study out today looks at the question of whether or not geographically widespread species are less likely to become extinct, using the Triassic-Jurassic boundary extinction event. Alex Dunhill from the University of Leeds had [&hellip... Read More


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