This was originally posted here. Mass extinctions are insanely catastrophic, but important, events that punctuate the history of life on Earth. The Jurassic/Cretaceous boundary, around 145 million years ago, was originally thought of to represent a mass extinction, but has subsequently been ‘down-graded’ to a minor extinction event based on new discoveries. However, compared to …[Read More]
Jurassic
Crocodiles feeling the heat of extinction
New research on crocodiles shows that a combination of changing sea levels and temperatures were responsible for driving their biodiversity over millions of years. Living crocodiles are threatened by climate change, with 10 out of 23 species at a high risk of extinction. As ectotherms, animals which require external sources of heat to function, they …[Read More]
New ‘fish lizard’ used to prowl the Scottish seas
A cool new ichthyosaur – a type of marine reptile – has just been named in the Scottish Journal of Geology. I’ve written about it here, with some great comments from the lead author (Steve Brusatte). Most reports on the new beastie just focus on the finding, but we’ve gone for a different angle by …[Read More]
Last dinosaur of its kind found in the land that time forgot
In terms of iconic dinosaurs, the gargantuan sauropods are certainly up there. Along with the mostly meat eating-theropods, and herbivorous and often armoured ornithischians, they form one of the three major groups, or clades, of dinosaurs, and were the biggest animals to ever walk this Earth. The end of the Jurassic period, some 145 million …[Read More]
What do we know about the origin of flowering plants?
This is a guest post by Dan Peppe. He is an Assistant Professor in the Geology Department at Baylor University. His research interests are focused on reconstructing ancient climates and ecosystems in North America and East Africa and on developing new and improved palaeoclimate and palaeoecological proxies using methods in paleobotany, sedimentary geology, and paleomagnetism. More …[Read More]
Plan of action!
Crikey, it’s been 3 months already?! *panics* At Imperial College, new PhD students have to produce an initial plan of study within the first three months of setting off, and submit it for independent assessment. Having uploaded mine just now (not in the slightest bit late..), I figured I’d share it here! It’s a broad …[Read More]
Ancient crocodiles were a bit like killer whales. Go figure.
When you cast your mind back to the Mesozoic and think of the predators of the time, your mind goes to dinosaurs. You just thought of a T. rex didn’t you? Didn’t you. Crocodiles are the unsung heroes of the past, probably due to the fact that they’re still around today, so not considered as …[Read More]