Bienvenue sur le site des dinosaures

DinoNews: Accueil > Quoi de neuf?

ScienceDaily: Dinosaur News

 

Adresse du flux RSS: https://www.sciencedaily.com/rss/fossils_ruins/dinosaurs.xml

Articles disponibles:

 

03 03 2021, 20:24:37 - Prehistoric killing machine exposed

3D imaging of the dinocephalian, Anteosaurus, shows that this massive premammalian reptile that grew to the size of a full-grown hippopotamus, was a highly agile killing machine, and not a slow stodgy scavenger as previously believed.

 

03 03 2021, 03:20:07 - Cutting-edge analysis of prehistoric teeth sheds new light on the diets of lizards and snakes

New research has revealed that the diets of early lizards and snakes, which lived alongside dinosaurs around 100 million years ago, were more varied and advanced than previously thought.

 

26 02 2021, 18:13:06 - Pioneering prehistoric landscape reconstruction reveals early dinosaurs lived on tropical islands

A new study using leading edge technology has shed surprising light on the ancient habitat where some of the first dinosaurs roamed in the UK around 200 million years ago.

 

26 02 2021, 16:38:22 - Dinosaur species: 'Everyone's unique'

'Everyone's unique' is a popular maxim. All people are equal, but there are of course individual differences. This was no different with dinosaurs. A study has now revealed that the variability of Plateosaurus trossingensis was much greater than previously assumed. The paleontologists examined a total of 14 complete skulls of this species, eight of which they described for the first time.

 

25 02 2021, 20:39:20 - Did teenage 'tyrants' outcompete other dinosaurs?

Paleo-ecologists have demonstrated that the offspring of enormous carnivorous dinosaurs, such as Tyrannosaurus rex may have fundamentally re-shaped their communities by out-competing smaller rival species.

 

24 02 2021, 16:08:49 - New fossil discovery illuminates the lives of the earliest primates

A new fossil discovery is central to primate ancestry and adds to our understanding of how life on land recovered after the Cretaceous-Paleogene extinction event 66 million years ago that wiped out all dinosaurs, except for birds.

 

19 02 2021, 14:38:48 - Quartz crystals in the stomach of fossil bird complicates the mystery of its diet

The fossil of a bird that lived alongside the dinosaurs was found with some sort of rocks in its stomach. Previously, researchers thought that these rocks were swallowed on purpose to help clean its stomach, like modern birds of prey do, giving a hint at its diet. But in a new study, scientists discovered that these rocks are quartz crystals that likely formed after the bird died -- its diet is still a mystery.

 

16 02 2021, 17:51:10 - Enormous ancient fish discovered by accident

Fossilised remains of a fish that grew as big as a great white shark and the largest of its type ever found have been discovered by accident.

 

15 02 2021, 22:02:30 - Carbon dioxide dip may have helped dinosaurs walk from South America to Greenland

A new study identifies a climate phenomenon that may have helped sauropodomorphs spread northward across the Pangea supercontinent.

 

27 01 2021, 14:39:01 - New light shed on behavior of giant carnivorous dinosaur Spinosaurus

New research has reignited the debate around the behavior of the giant dinosaur Spinosaurus.

 

25 01 2021, 15:43:43 - New skull of tube-crested dinosaur reveals evolution of bizarre crest

The first new skull discovered in nearly a century from a rare species of the iconic, tube-crested dinosaur Parasaurolophus was announced today. The exquisite preservation of the skull, especially the bizarre tube-shaped nasal passage, finally revealed the structure of the crest after decades of disagreement.

 

19 01 2021, 17:44:33 - All-purpose dinosaur opening reconstructed

Researchers have described in detail a dinosaur's cloacal or vent -- the all-purpose opening used for defecation, urination and breeding.

 

14 01 2021, 17:19:18 - Spectacular fossil discovery: 150 million-year-old shark was one of the largest of its time

A team led by Sebastian Stumpf from the University of Vienna describes an well-preserved skeleton of the ancient shark Asteracanthus. This rare fossil find comes from the famous Solnhofen limestones in Bavaria, which was formed in a tropical-subtropical lagoon landscape during the Late Jurassic, about 150 million years ago. The almost complete skeleton shows that Asteracanthus was two-and-a-half meters long, which makes this ancient shark one of the largest of its time.

 

07 01 2021, 14:37:51 - Why crocodiles have changed so little since the age of the dinosaurs

New research explains how a 'stop-start' pattern of evolution, governed by environmental change, could explain why crocodiles have changed so little since the age of the dinosaurs.

 

16 12 2020, 17:32:40 - When dinosaurs disappeared, forests thrived

To understand how specific ecosystems were affected by a large asteroid impact that led to the mass extinction of dinosaurs, a team of scientists has analyzed the microscopic remains of plants from this period. They found that local plant communities and ecosystems experienced a long-term shift towards fewer aquatic plants and an increase in terrestrial plants, including trees such as birches and elms. Changes in rainfall patterns during the extinction event were relatively minor and short-lived.

 

15 12 2020, 01:23:49 - New dinosaur showed descendants how to dress to impress

Scientists have found the most elaborately dressed-to-impress dinosaur ever described and say it sheds new light on how birds such as peacocks inherited their ability to show off.

 

14 12 2020, 15:01:43 - Unexpected insights into early dinosaur's brain, eating habits and agility

A pioneering reconstruction of the brain belonging to one of the earliest dinosaurs to roam the Earth has shed new light on its possible diet and ability to move fast.

 

25 11 2020, 01:05:27 - T. rex had huge growth spurts, but other dinos grew slow and steady

By cutting into dinosaur bones and analyzing the growth lines, a team of researchers discovered that T. rex and its closest relatives got big thanks to a huge growth spurt in adolescence, while its more distant cousins kept on growing a little bit every year throughout their lives.

 

24 11 2020, 17:13:32 - Only dinosaurs found in ireland described for the first time

The only dinosaur bones ever found on the island of Ireland have been formally confirmed for the first time by a team of experts. The two fossils are from two different dinosaurs, a four-legged plant-eater called Scelidosaurus and a two-legged meat-eater similar to Sarcosaurus.

 

18 11 2020, 01:26:26 - New analysis refutes claim that dinosaurs were in decline before asteroid hit

New research suggests that dinosaurs were not in decline before the asteroid hit. The study contradicts previous theories and concludes that had the impact not occurred dinosaurs might have continued to be the dominant group of land animals.

 

06 11 2020, 18:33:13 - Baby dinosaurs were 'little adults'

Paleontologists have described for the first time an almost complete skeleton of a juvenile Plateosaurus and discovered that it looked very similar to its parents even at a young age. That could have important implications for how the young animals lived and moved around. The young Plateosaurus, nicknamed 'Fabian', was discovered in 2015 at the Frick fossil site in Switzerland.

 

05 11 2020, 14:37:06 - The first duckbill dinosaur fossil from Africa hints at how dinosaurs once crossed oceans

The first fossils of a duckbilled dinosaur have been discovered in Africa, suggesting dinosaurs crossed hundreds of kilometres of open water to get there.

 

02 11 2020, 18:00:55 - New study finds earliest evidence for mammal social behavior

A new study by paleontologists indicates that the earliest evidence of mammal social behavior goes back to the Age of Dinosaurs. The multituberculate Filikomys primaevus engaged in multi-generational, group-nesting and burrowing behavior, and possibly lived in colonies, some 75.5 million years ago.

 

28 10 2020, 17:45:15 - Cracking the secrets of dinosaur eggshells

Since the famous discovery of dinosaur eggs in the Gobi Desert in the early 1920s, the fossilized remains have captured the imaginations of paleontologists and the public, alike. Although dinosaur eggs have now been found on every continent, it's not always clear to scientists which species laid them. Now, researchers have narrowed down the list for an unknown eggshell from Mexico by comparing its microstructure and composition with four known samples.

 

27 10 2020, 18:37:13 - Antarctica yields oldest fossils of giant birds with 21-foot wingspans

Some of the largest birds in history, called pelagornithids, arose a few million years after the mass extinction that killed off the dinosaurs and patrolled the oceans with giant wingspans for some 60 million years. A team of paleontologists has found two fossils -- each from individual pelagornithids with wingspans of 20 feet or more -- that show this gigantism arose at least 50 million years ago and lasted at least 10 million years.

 

07 10 2020, 04:02:09 - Toothless dino's lost digits point to spread of parrot-like species

A newly discovered species of toothless, two-fingered dinosaur has shed light on how a group of parrot-like animals thrived more than 68 million years ago.

 

30 09 2020, 14:51:59 - Dinosaur feather study debunked

A new study provides substantial evidence that the first fossil feather ever to be discovered does belong to the iconic bird-like dinosaur, Archaeopteryx. This debunks a recent theory that the fossil feather originated from a different species.

 

28 09 2020, 19:31:52 - Evidence that prehistoric flying reptiles probably had feathers refuted

Experts have examined the evidence that prehistoric flying reptiles called pterosaurs had feathers and believe they were, in fact, bald.

 

21 09 2020, 17:17:09 - Dino teeth research prove giant predatory dinosaur lived in water

A discovery of more than a thousand dinosaur teeth proves beyond reasonable doubt that Spinosaurus, the giant predator made famous by the movie Jurassic Park III as well as the BBC documentary Planet Dinosaur was an enormous river-monster.

 

21 09 2020, 16:25:38 - Bird beak revealed by laser imaging informs early beak function and development

Confuciusornis was a crow-like fossil bird that lived in the Cretaceous ~120 million years ago. It was one of the first birds to evolve a beak. Early beak evolution remains understudied. Using an imaging technique called Laser-Stimulated Fluorescence, researchers address this by revealing just how different the beak and jaw of Confuciusornis were compared to birds we see today.

 

Retour au sommaire de Quoi de neuf?

 

 

 

 

Retour en haut de la page

 

Revenir à l'accueil de Dinonews Retour accueil
Invité(e)
Se connecter
Retour au sommaire de l'annuaire Sommaire
Plan du site Plan du site