您的当前位置:首页 >探索 >【】The prehistoric beast -- formally named 正文
时间:2024-09-20 08:44:15 来源:网络整理编辑:探索
Meet "Razana," a gigantic lizard ancestor with the teeth of a T. rex and the body of a crocodile.。Th
Meet "Razana," a gigantic lizard ancestor with the teeth of a T. rex and the body of a crocodile.。
The prehistoric beast -- formally named 。 Razanandrongobe sakalavae -- 。was likely a top predator in Madagascar about 170 million years ago, when dinosaurs also roamed the planet, a team of Italian and French paleontologists said Tuesday.。
SEE ALSO:99-million-year-old bird fossil has been found preserved in amber and it's truly exquisite 。Razana had a massive jaw bone lined with enormous jagged teeth, which were similar in size and shape to those of a。 Razana had a massive jaw bone lined with enormous jagged teeth, which were similar in size and shape to those of a 。Tyrannosaurus rex 。 , the scientists wrote in a study published July 4 in the journal 。 PeerJ.。
That suggests the teeth were sharp enough to slice through hard tissue such as bone and tendon.。An illustration of the head of Razana.Credit: Fabio Manucci 。
By signing up you agree to our Terms of Use and Privacy Policy. 。
Thanks for signing up!。
Paleontologists said Razana appears to be by far the oldest and largest representative of a group of croc-like animals called Notosuchians. Little is known about the origin and early evolution of this group, and until now, these animals hadn't been known to exist during the Jurassic period. 。"Like these and other gigantic crocs from the [more recent] Cretaceous, Razana could outcompete even theropod dinosaurs at the top of the food chain," Cristiano Dal Sasso, the study's lead author and a researcher at the Natural History Museum of Milan, said in a statement.。
Paleontologists Cristiano Dal Sasso (right) and Simone Maganuco (left) exhibit some skull bones of Razana in Milan.Credit: Giovanni Bindellini。
The Madagascar fossils are thought to predate other forms of the Notosuchia by 42 million years, according to the study.。
"It represents a further signal that the Notosuchia originated in southern Gondwana," he said. 。
Dressage horse dancing to 'Smooth' by Santana wins gold for chillest horse2024-09-20 08:43
One florist is beautifying NYC with flower arrangements in unlikely places2024-09-20 08:22
One florist is beautifying NYC with flower arrangements in unlikely places2024-09-20 08:12
Hackers may be working to bring back WannaCry just for the lulz2024-09-20 07:55
Did our grandparents have the best beauty advice?2024-09-20 07:52
All the weird things people have thrown at politicians2024-09-20 07:36
'Nancy' isn't a person, it's a podcast. Oh, and it's super, super gay.2024-09-20 07:09
Surprise! Fans are as obsessed with the 'Twin Peaks' revival as the original2024-09-20 06:33
Katy Perry talks 'Rise,' her next batch of songs, and how to survive Twitter2024-09-20 06:31
In search of Facebook’s conscience2024-09-20 06:31
Old lady swatting at a cat ends up in Photoshop battle2024-09-20 08:26
Twitter's co2024-09-20 07:52
Can you find the hidden and scared government official?2024-09-20 07:33
How the soccer world mourned the Manchester attack2024-09-20 07:19
Researchers create temporary tattoos you can use to control your devices2024-09-20 07:04
Facebook's been making it up all along and we're left holding the bag2024-09-20 06:57
Robots could absolutely devastate the retail market2024-09-20 06:56
In search of Facebook’s conscience2024-09-20 06:29
'Rocket League' Championship Series Season 2 offers $250,000 prize pool2024-09-20 06:16
Facebook and Google dominate in online news — but for very different topics2024-09-20 06:04