The evolutionary line from theropod dinosaurs is absolute. There is no question that this is one of the greatest stories that life on Earth has ever told us, But evolution is not linear; it’s chaotic. It’s bizarre. Along this theropod line, dinosaurs were experimenting – they were the evolutionary scientists of their time. One of the weirdest things that theropods did was become herbivores again – ...[Read More]
How do the chemical ghosts of dinosaurs help their preservation?
For some years now, Mary Schweitzer and her team have been researching the idea that organic molecules can be preserved for millions of years, specifically within dinosaurs. They have used a plethora of chemical and biotechnological techniques to demonstrate that, within animals like Tyrannosaurus rex, it is possible to find the residue of structures such as blood vessels and even proteins. Natura ...[Read More]
Where did all the mammoths go?
Let’s go meta. Recently, ecologist extraordinaire Dr. Jacquelyn Gill (or is it Professor cos of that weird American system?) wrote a wonderful review article on the extinctions that affected many large mammal species during the last 50-10,000 years. This period is known as the Quaternary, and was a time when ice ages were running rife between warmer periods, and herds of enigmatic mammals ro ...[Read More]
Diving too deep?
A new initiative has just been announced that could help to revolutionise palaeontology. PaleoDeepDive is essentially an automated version of the Paleobiology Database, which is an online, professionally crowd-sourced and curated database of fossil occurrences pulled from the literature. They have a launch video here: I have a couple of reservations about this. Firstly, how do they expect to mine ...[Read More]
Were dinosaurs the masters of social integration?
Back in the Late Cretaceous, the USA was divided. Not politically, but by a vast continental sea called the Western Interior Seaway, splitting the continent into two separate landmasses. The western one of these, known as Laramidia, played host to some of the popular dinosaurs like Parasaurolophus, or ‘Elvis’ in Pete Postlethwaite dialect, and the ceratopsian Chasmosaurus. One of the cool things a ...[Read More]
In which we explain how camel ankle bones relate to the fate of global ecosystems.
This was originally posted at 4th Dimensional Biology by Brianna McHorse and Edward Davis. Reblogging because awesome (with permission). I’m taking time away from comic book blogging to do some actual SCIENCE BLOGGING. Just last month I published a paper in Palaeontologia Electronica with my esteemed colleague Brianna McHorse (who blogs over at Fossilosophy). It’s called “A method for improved ide ...[Read More]
To bird or not to bird..
In 2012, the controversial case over whether or not Archaeopteryx lithographica, perhaps the most iconic dinosaur species of all time, was a bird was settled. Apparently. (free pdf) This was an important analysis for two reasons. Firstly, it countered a previous study showing that Archaeopteryx was more closely related to dinosaurs like Velociraptor and Deinonychus, and secondly used advanced, sor ...[Read More]
It’s been a while..!
In a post two months ago, I promised that I’d keep you updated with how my research is progressing. Needless to say, I’ve done a pretty poor job of that, unless you follow me on Twitter! I must apologise – the workload while travelling was severely under-estimated, and I’ve barely had time to catch a nap. I’m writing to you now from Lyon, where I finally had a day off ...[Read More]
The underworld thief returns from the dead
So I don’t normally blog whenever a new dinosaur pops out the pages, but a new one, Acheroraptor temertyorum received quite a welcome back to the living world with this exquisite illustration by Danielle Dufault. I’ve asked for her permission to post on here, and it’ll appear on the front cover of Naturwissenschaften (December issue, probably), so defo worth checking out a hard c ...[Read More]
Theropod skulls: a note of caution
Morphometrics is a horrible word, but refers to a technique that is gaining increased traction in palaeontology in recent years. It essentially is a way of measuring anatomy, or specific aspects of anatomy. An extension of it is called geometric morphometrics, and this relies on using co-ordinate points on fossils to analyse things like shape variation. The newly minted Dr Christian Foth had a stu ...[Read More]