Showing posts with label Paleontology. Show all posts
Showing posts with label Paleontology. Show all posts

Wednesday, March 22, 2017

No, That Was Margaret Thatcher, It's a Common Mistake

OK, the headline on the BBC was, "Major shake-up suggests dinosaurs may have 'UK origin'," but I still think that it was Margaret Thatcher:
The first dinosaurs may have originated in the Northern Hemisphere, possibly in an area that is now Britain.

This is one of the conclusions of the first detailed re-evaluation of the relationships between dinosaurs for 130 years.

It shows that the current theory of how dinosaurs evolved and where they came from may well be wrong.

This major shake-up of dinosaur theory is published in this weeks's edition of the journal Nature.

The reassessment shows that the meat eating beasts, such as Tyrannosaurus rex and Velociraptor, have been wrongly classified in the dinosaur family tree.

One of the implications is that dinosaurs first emerged 15 million years earlier than previously believed.

And the fossil evidence suggests that this origin may have occurred further north than current thinking suggests - possibly in an area that is now the UK, according to the new study's lead author, Matthew Baron of Cambridge University.
Well, that was my first thought when I read the headline.

Tuesday, December 6, 2016

Your Awesome Fact of the Day

In a development that should surprise no one, this is a fact about the Gary Larson Cartoon The Far Side:
Stegosaurus is world-famous for its lime-sized brain and the quartet of nasty-looking spikes on its tail. A 1982 "Far Side" strip decided to have a little fun with the latter attribute. In that cartoon, we find an early human anachronistically lecturing his fellow cavemen about dinosaur-related hazards. Pointing at the rear end of a Stegosaurus diagram, he says “Now this end is called the thagomizer … after the late Thag Simmons.” Without meaning to, Larson’s strip plugged a gap in the scientific lexicon. Previously, nobody had ever given a name to the unique arrangement of tail spikes found on Stegosaurus and its relatives. But today, many paleontologists use the word “thagomizer” when describing this apparatus, even in scientific journals.
This is so full of awesome that there is a risk of injury.

Tuesday, June 16, 2015

Wednesday, April 8, 2015

I am Unreasonably Stoked About This

I don't know why, but the taxonomic resurrection of the species Brontosaurus has me pleased to a completely unreasonably degree:
The brontosaurus, loved by kids the world over but cruelly snubbed by paleontologists for more than a century, is back. British and Portuguese fossil boffins have concluded the dinosaur existed as a separate genus after all.

It was back in 1879 that paleontologist Othniel Charles Marsh named a collection of bones a brontosaurus, or Thunder Lizard, and described a massive herbivore with a long neck and tail that wandered across the plains of what is now America.

But within a couple of decades the existence of the Thunder Lizard was called into question, and the scientific community decided that the stumbled-upon brontosaurus was just an adolescent apatosaurus. There then followed a 100-year campaign to expunge the word brontosaurus from textbooks, but the name proved just too popular.

Now a study looking at the largest range of fossils of the genus has shown that the brontosaurus was a distinct genus. While the dino does have strong similarities to the apatosaurus, there are enough differences to separate the two, the study's authors concluded.

Our research would not have been possible at this level of detail 15 or more years ago", explains Emanuel Tschopp, a Swiss national who led the research from the Universidade Nova de Lisboa in Portugal, "in fact, until very recently, the claim that Brontosaurus was the same as Apatosaurus was completely reasonable, based on the knowledge we had."

The initial argument for the non-existence of the brontosaurus was down to its sacrum bones, which link the tail to the base of the spine. The first Thunder Lizard found had five of these, compared to the apatosaurus' three, but it was assumed that the brontosaurus bones were young and would have merged together to form these three bones.

But as more and more specimens were found, this theory started to look a little off. That was reinforced by other fossil evidence, so the new study turned to statistics to find out what was going on.

"The differences we found between Brontosaurus and Apatosaurus were at least as numerous as the ones between other closely related genera, and much more than what you normally find between species," explained Roger Benson, a co-author from the University of Oxford.
I have no clue why I am so giddy over this news, but I am incredibly happy about this.

Wednesday, August 6, 2014

I Honestly Do Not Know if this is Cute or Terrifying

But a 2 m tall penguin weighing 115 kg could play outside linebacker in the NFL:
A penguin species that lived millions of years ago would have dwarfed today’s biggest living penguins and stood as tall as most humans, according to analysis of fossils by a team of researchers from the La Plata Museum in Argentina.

Palaeeudyptes klekowskii has already been dubbed the “colossus penguin”, and is the most complete fossil ever uncovered from the Antarctic. The unearthed bones are 37m years old and include the longest recorded fused ankle-foot bone as well as parts of a wing bone.

From those bones, researchers estimated the species would have stood 2m tall from toe to beak tip, and weighed as much as 115kg. Standing normally, beak down, the penguin would have be around 1.6m tall, the team reported in the journal Geobios.

By comparison, the tallest and heaviest living species, the emperor penguin (Aptenodytes forsteri), stands 1.1m high and weighs just under 50kg.
This is like Ted "The Mad Stork" Hendricks in a tuxedo.

Unreal.