Advertisement
If you have a new account but are having problems posting or verifying your account, please email us on hello@boards.ie for help. Thanks :)
Hello all! Please ensure that you are posting a new thread or question in the appropriate forum. The Feedback forum is overwhelmed with questions that are having to be moved elsewhere. If you need help to verify your account contact hello@boards.ie
The Megaraptoran Thread
Options
-
09-08-2011 11:42pm#1They are about 60 cms long, have very visible claw marks and are described as "gracile". They were found in the same Argentinian zone where the fossils of Megaraptor where found.
Here's the article on the finding, but it's in Spanish :> Leave u the link anyways:
http://elvinosaurio.blogspot.com/2011/07/mas-huellas-de-dinosaurio-en-lago.htmlTagged:3
Comments
-
-
The missing hand claw of Australovenator (nicknamed "Banjo"), an Australian Megaraptor relative, has been found. It was 15 cms long, and used as a hook, say paleontologists, to hold onto its prey while delivering nasty bites to it, starting to eat it alive.
http://news.ninemsn.com.au/technology/8490656/prehistoric-killers-nasty-weapon-found
Here's an Australovenator hunting a small Diamantinasaurus. Seems that this dino is already quite famous in its native land.
0 -
Apparently the skull of a young Megaraptor has been found and it appears to be a tyrannosauroid, not an allosauroid as previously believed.
http://www.sciencedirect.com/science/article/pii/S0195667114000755
Paleontologist Thomas Holtz published this via Twitter- skull (above) looks a lot like primitive tyrannosauroids such as Dilong (below):
Wonder what an adult Megaraptor looked like, tho...0 -
-
-
Advertisement
-
Fragmentary, unfortunately (picture below is a composite megaraptoran since we don´t have any complete skeletons of any of these mystery dinos).
http://theropoda.blogspot.mx/2018/03/the-megaraptoran-battle-tratayenia.html
0 -
The remains may belong to a megaraptoran:
https://royalsocietypublishing.org/doi/full/10.1098/rsos.180826
If it was, it may have been similar to Australovenator, which itself was like a smaller, lighter version of the South American Megaraptor:
0 -
This new study strongly suggests megaraptorans (a group of deadly predators with huge, trenchant claws on the hands, such as Megaraptor, Australovenator, and Murusraptor) were closely related to tyrannosauroiods, as new material known from the latter shows many traits in common with juvenile tyrannosaurids and alioramines. Thus they are now confidently placed in their own family, Megaraptoridae, near the base of the tyrannosauroid tree.
It also shows Neovenator and Chilantaisaurus ("neovenatorids")are not part of the same family, instead being more related to allosauroids.
https://www.sciencedirect.com/science/article/pii/S0195667118300296
0 -
Two new megaraptorans found in Thailand:
Until now, megaraptoran remains had been found in South America and Australia; this find proves they were more widespread than previously thought.
https://phys.org/news/2019-05-thai-dinosaur-cousin-rex.html
Phuwiangvenator was probably a fast runner. With a length of about six meters, it was considerably smaller than the T. rex, who measured about twelve meters. Megaraptors have so far been discovered mainly in South America and Australia. "We have compared the Thai fossils with the finds there," says Samathi. "Various characteristics of Phuwiangvenator indicate that it is an early representative of this group. We take this as an indication that the megaraptors originated in Southeast Asia and then spread to other regions."
During his research in Thailand, the doctoral student discovered further unidentified fossils. They also belong to a predatory dinosaur, which was a bit smaller with a length of about 4.5 meters. The material was not sufficient to clarify the exact ancestry. However, scientists assume that smaller dinosaur, named Vayuraptor nongbualamphuenisis, is also related to Phuwiangvenator and T. rex. "Perhaps the situation can be compared with that of African big cats," explains Samathi. "If Phuwiangvenator were a lion, Vayuraptor would be a cheetah."
Most of what we know comes from the South American Megaraptor (initially misidentified as a gigantic dromaeosaur), which is now known by relatively decent, although still incomplete remains including a partial jaw:
And the formidable hand and claws:
As well as a possible Megaraptor footprints found at the same Argentinian location as the fossilized bones:
https://elvinosaurio.blogspot.com/2011/07/mas-huellas-de-dinosaurio-en-lago.html
0 -
More megaraptor remains found in Australia.
These include of course the famous claw, and are extremely similar to those of "Australovenator", despite being 10 million years older (early Cretaceous, about 107 million years). The remains are smaller than those of the South American Megaraptor and possibly from a subadult, but otherwise very similar, with only features of the vertebrae setting them apart. I'm starting to suspect this may be a single, long-lived genus (Megaraptor
https://www.cnet.com/news/scientists-unearth-huge-new-claw-from-110-million-year-old-carnivorous-dinosaur/
0 -
Advertisement
-
More megaraptor (Australovenator?) remains found in Australia:
https://www.abc.net.au/news/2020-01-15/winton-dinosaur-australias-largest-carnivore-unearthed-theropod/11867092?pfmredir=sm&fbclid=IwAR3hKFQwHmMAMCSkZy9K_qzIMbdyCzOwGVRgz03m0XR54QMXes_Mn0SaWbU
The bones cannot be definitively identified to a species, but closely resemble an Australovenator wintonensis specimen found less than 2 kilometres away in 2006.
Dr White said the dinosaurs could be up to 2 metres high, between 5 to 7 metres long, and were similar in appearance to the velociraptors depicted in the film Jurassic Park.
"Except the claws are on the hands, not the feet," he said.
"It had quite large hands, but on each hand it had two recurved claws that were quite large … and like birds you have a horny sheath over the top so they would have ended up round about close to 25 to 30 centimetres."0 -
New remains of a Megaraptor found in Argentina! This was a very large individual around 10 m long!
https://fundaciondinosaurioscyl.blogspot.com/2020/05/hallazgo-en-santa-cruz-encuentran-un.html
According to discoverer Mauro Aranciaga Roland:We have found a very large example of a new megaraptorid; these were formidable carnivorous dinosaurs, with spectacular hunting adaptations.
Unlike T. rex, megaraptors were more gracile animals, better suited for running, with long tails to keep balance and muscular legs, but elongated for a greater stride.
The main weapons of megaraptors were the arms which were very long and muscular and had scythe-like claws with a sharp edge, up to 40 cm long, so it's likely these animals (were using their claws to inflict deep wounds on their prey).
0
Advertisement