* Astronomy

Members Login
Username 
 
Password 
    Remember Me  
Home -> Astronomy News -> General news -> Dinosaurs
Post Info
TOPIC: Dinosaurs
Blobrana


L

Posts: 131433
Date:
RE: Dinosaurs
Permalink  
 

Dinosaurs Arose at Least 10 Million Years Earlier Than Thought

Scientists have discovered 243-million-year-old fossils of dinosaurs' closest relatives, which pushes back the origin of dinosaurs by at least 10 million years.
The dinosaur-like creature, Asilisaurus kongwe, was about the size of a Labrador retriever and had teeth and jaw bones ideally shaped for eating plants, indicating it ate a mostly vegetarian diet.
The earliest known dinosaur fossils are around 230 million years old. The new findings indicate that the dinosaurs and the silesaurs, the group that encompasses Asilisaurus, diverged more than 243 million years ago. That means dinosaurs must have originated sometime before then.
Read more

__________________
Blobrana


L

Posts: 131433
Date:
Abydosaurus
Permalink  
 

Dinosaur skulls cast light on new species

A team of palaeontologists has discovered a new dinosaur species which belongs to the group of gigantic, long-necked, long-tailed, four-legged, plant-eating dinosaurs such as Brachiosaurus. The new species has been dubbed 'Abydosaurus'.
The fossils were excavated from the Cedar Mountain Formation in Dinosaur National Monument near Vernal, Utah. The team recovered four heads - two still fully intact - from a quarry in Dinosaur National Monument in eastern Utah. Complete skulls have been recovered for only eight of more than 120 known varieties of sauropod.
Read more

Abydosaurus.jpg
Expand (859kb, 1500 x 2100)

__________________
Blobrana


L

Posts: 131433
Date:
RE: Dinosaurs
Permalink  
 

Island of dwarf dinosaurs

The idea of dwarf dinosaurs on Haeg Island, Romania, was proposed 100 years ago by the colourful Baron Franz Nopcsa, whose family owned estates in the area.  He realized that many of the Haeg dinosaurs had close relatives in older rocks in England, Germany, and North America, but the Romanian specimens were half the size.
In new work by Professor Mike Benton at the University of Bristol, and six other authors from Romania, Germany, and the United States, Nopcsa's hypothesis is tested for the first time. They found that the Haeg Island dinosaurs were indeed dwarfs
Read more

__________________
Blobrana


L

Posts: 131433
Date:
Permalink  
 

The 150-million-year-old fossil of a new species of a herbivorous dinosaur were unearthed in Phu Noi in Kalasin's Kham Muang district.
Joining dinosaur experts, Dr Eric Buffetaut and Dr Haiyan Tong, yesterday morning to officially open the archaeological site, Mineral Resources Department's senior geologist Dr Warawut Suteethorn said the fossils, possibly dating back to the late Jurassic period, were older than those found at Phu Khum Khao in Kalasin's Sahatsakhan district.
Read more

__________________
Blobrana


L

Posts: 131433
Date:
Permalink  
 

Dinosaur Discovery Helps Solve Piece of Evolutionary Puzzle

Through an expedition to the Gobi Desert of China, scientists have solved the puzzle of how one group of dinosaurs came to look like birds--independent of birds.
The discovery extends the fossil record of the family Alvarezsauridae--a bizarre group of bird-like dinosaurs with a large claw on the hand and very short, powerful arms--back 63 million years, further distancing the group from birds on the evolutionary tree.
Until now, there was no direct evidence that dinosaurs of this type lived during the Late Jurassic, some 160 million years ago.
Read more

__________________
Blobrana


L

Posts: 131433
Date:
Permalink  
 

Following in a giant dinosaur's footsteps could be fatal - but not for the reasons you might suspect.
Mysterious "death pits" holding the fossil skeletons of nearly two dozen small dinosaur species may actually be the 160-million-year-old footprints of an ancient behemoth, a new study suggests.
The first of three dino-filled pits was unearthed nearly a decade ago in northwestern China's remote Xinjiang region.
Inside the 1- to 2-metre-deep depressions were the largely complete skeletons of several species of small theropods, bipedal raptors from the lineage that includes Tyrannosaurus rex.
Read more

__________________
Blobrana


L

Posts: 131433
Date:
Permalink  
 

Work to piece together the prehistoric bones of an iguanadon, found off the Islands coast, is to start early next year, creating one of the worlds finest examples of the creature.
Staff at the Isle of Wight Council-run Dinosaur Isle will carry out the detailed cleaning and piecing together of the fossilised bones, in front of visitors at the museum.
Read more

__________________
Blobrana


L

Posts: 131433
Date:
Tawa hallae
Permalink  
 

Dinosaurs diversified before spreading around the world

Fossils found in the US state of New Mexico are providing strong evidence that dinosaurs originated in what is now South America, and had already evolved into three main groups before spreading around the world.
The fossils - of a new species, named Tawa hallae - back more than 200 million years, to when Earth's land masses were joined together as the supercontinent Pangaea. They retain features from the earliest dinosaur specimens, found in South America.
Dinosaurs are thought to have first evolved about 230 million years ago, their populations yo-yoing until a cataclysmic event wiped them out about 65 million years ago.

Read more

__________________
Blobrana


L

Posts: 131433
Date:
Aardonyx celestae
Permalink  
 

The discovery of a new species of dinosaur from the early Jurassic period (approximately 195 million years old and seven metres long) was announced and described by Dr Adam Yates, the primary investigator and a palaeontologist from the Bernard Price Institute for Paleontological Research (BPI) from the University of the Wi****ersrand, Johannesburg, South Africa, on 11 November 2009.
The vegetarian dinosaur, one of three discovered at the same site, was named Aardonyx celestae - the genus name (Aardonyx) means "Earth Claw", (Aard - Afrikaans for Earth) and (Onyx - Greek for claw) an appropriate name, given that the large, earth-encrusted foot claws were some of the first bones to be discovered in the town of Senekal, near Bethlehem in the Northern Free State, in South Africa. The species name (celestae) is given to acknowledge the work of Celeste Yates who prepared much of the fossil.

Read more

__________________
Blobrana


L

Posts: 131433
Date:
Permalink  
 

Missing link dinosaur discovered
Researchers have discovered a fossil skeleton that appears to link the earliest dinosaurs with the large plant-eating sauropods.
This could help to bridge an evolutionary gap between the two-legged common ancestors of dinosaurs and the four-legged giants, such as diplodocus.

Read more

__________________
«First  <  1 … 9 10 11 12 13 … 27  >  Last»  | Page of 27  sorted by
Quick Reply

Please log in to post quick replies.
Home -> Astronomy News -> General news -> Dinosaurs


Create your own FREE Forum
Report Abuse 		Powered by ActiveBoard