Discussion in 'New Science' started by ramonmercado, Sep 16, 2005.
Ultra-realistic recreation of Psittacosaur, from an astonishingly well-preserved fossil:
That carcass simply doesn't look over 100 million years old!
It's cute! I want one.
Cute little fellow ain't he?
Like a cartoon bipedal tortoise with a chunk of Toblerone in each cheek.
Thanks for posting that. I have a bit of an interest in dinosaur sculpture.
Sounds interesting, do you partake?
No, but I do take an interest in what other people are doing.
I'd like to have a go at sculpting from scratch, but I have so many other things to juggle. I've done a couple of those Airfix dinosaur kits and I have a few commercially-built toys, but that's it.
I did, unsurprisingly, a thylacine once. It was crap. I also had a crack at reconstructing a few animals on paper, they came out OK.
I'd say give the sculpting a go. If you do, good luck with it.
This one looks alright although I haven't watched it yet ..
Massive footprint found. I struggle to even imagine a 100ft long, 66ft tall animal!
Theropod courtship: large scale physical evidence of display arenas and avian-like scrape ceremony behaviour by Cretaceous dinosaurs
I don't know whether it's because I'm hung over today, but I found the writing in that article very clunky. Although the content is interesting. Well, as interesting as dinosaurs can be. Let's face it, they aren't mammals are they.
The first fossil dino brain found, in Bexhill of Sussex County, England
Are we just going to let Oldrover get away with dissing dinosaurs like that?
Hey, don't get me wrong, they're fine in their own little way. But, you know, if they were a wall they'd be painted magnolia.
Here are some things that are almost mammals.
Palaeoneurological clues to the
evolution of defining mammalian
soft tissue traits
Offers evidence to put the emergence of fluff at about 240 mya. Beautifully convoluted
"The presence of a true infraorbital canal in Prozostrodontia suggests that a motile rhinarium and maxillary vibrissae were present"
(This grove means it probably had a wet, hairy, twitchy nose)
Also, some points about the genetics controlling the development of the facial bones, are linked to the emergence of many other 'key' mammalian features.
In a nice coincidence, Gideon Mantell was born in Lewes, just up the road from Bexhill. He carried out a huge amount of pioneering fossil research in Sussex.
The brown topside makes sense for a small dino in the leaf litter. cool
Only if they were the right way up.
You beat me to it Dr Jones .. here's another pic of it anyway
Were they bloodsuckers?
Giant flying reptile ruled ancient Transylvania
February 10, 2017
University of Portsmouth
A giant pterosaur – a toothless flying reptile with a 10 metre wingspan – may have been the dominant predator in ancient Romania, suggests new research. The creature has a considerably shorter and stronger neck with larger muscles than the long graceful necks of others in its species. ...
3-D reconstruction of skull suggests a small crocodile is a new species
Unique features include openings in the jaw bone and in front of the eye, and tooth morphology
February 15, 2017
A small crocodyliform dinosaur may be a new species.
A small crocodile discovered in Germany's Langenberg Quarry may be a new species, according to a study published February 15, 2017 in the open-access journal PLOS ONE by Daniela Schwarz from Leibniz Institute for Evolutionary and Biodiversity Research, Germany, and colleagues.
The Langenberg Quarry has proven to be a rich source of marine-related fossils, including small crocodile-like atoposaurid species. The fossilized remains of this crocodile were exceptionally well-preserved but were still partly in sediment, making it difficult to examine the fossils fully. After initial analysis, the crocodile was assigned to the Theriosuchus genus. To study this atopasaurid in more detail, Schwarz and colleagues did a 3-D reconstruction of one of the fossil skulls based on micro-computed tomography. ...
That is really good.
Paleobiology interactive map
How dinosaurs learned to stand on their own two feet
March 3, 2017 by Katie Willis in Other Sciences / Archaeology & Fossils
Paleontologists at the University of Alberta have developed a new theory to explain why the ancient ancestors of dinosaurs stopped moving about on all fours and rose up on just their two hind legs.
Bipedalism in dinosaurs was inherited from ancient and much smaller proto-dinosaurs. The trick to this evolution is in their tails explains Scott Persons, postdoctoral fellow and lead author on the paper.
"The tails of proto-dinosaurs had big, leg-powering muscles," says Persons. "Having this muscle mass provided the strength and power required for early dinosaurs to stand on and move with their two back feet. We see a similar effect in many modern lizards that rise up and run bipedally."
Over time, proto-dinosaurs evolved to run faster and for longer distances. Adaptations like hind limb elongation allowed ancient dinosaurs to run faster, while smaller forelimbs helped to reduce body weight and improve balance. Eventually, some proto-dinosaurs gave up quadrupedal walking altogether.
The research, conducted by Persons and Phil Currie, renowned paleontologist and Canada Research Chair, also debunks theories that early proto-dinosaurs stood on two legs for the sole purpose of free their hands for use in catching prey.
"Those explanations don't stand up," says Persons. "Many ancient bipedal dinosaurs were herbivores, and even early carnivorous dinosaurs evolved small forearms. Rather than using their hands to grapple with prey, it is more likely they seized their meals with their powerful jaws." ...
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.
We may be looking at the possibility that the very earliest dinosaurs were roaming an area that has become Britain and the group itself could have originated on these shores
Matthew Baron, Cambridge University
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. ...
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