In 2010, Gregory S. Paul gave lower estimations of 9.5 metres and 2.5 tonnes.[3]
Its diets are fish and meats.The skull is reminiscent of that of crocodilians that eat mainly fish.
The overall impression is of a massive and powerful creature that ate fish and presumably other sorts of meat — carrion, if nothing else was available — more than 113 million years ago, when what is today part of the Sahara formed a lush, swampyhabitat.
information and pictures from en.wikipedia.org/wiki/Suchomimus
Majungasaurus is an abelisaurid dinosaur from the late Cretaceous[84-69] in Madagascar. Majungasaurus was up to 8 metres (26 feet) long, stood 2.5 metres (8 feet) tall, and weighed up to 2 tonnes. It was the top predetor of it`s area and time. Tooth marks have been found in Majungasaurus bones that didn`t belong to any other carnivore in the region, None exept majungsaurus itself. Majungasaurus was the top predetor in its place, nothing exept another Majungosaurus would have dared to attack it. In Madagascar 75 to 70 mya, It was a very hard place to live in. Ther were only about 4 or 5 different dinosaurs there. Majungasaurus had evolved to become the top predetor but it would have to eat it`s own kind. This show`s that Some diosaurs would exploit anything to gain their maximum advantage over everyone and everything as best as evolution could do. We don`t know if Majungasaurus just came across a dead Majungasaurus and ate it, or if it killed it. But we know it ate it`s own kind.
from http://www.prehistoric-wildlife.com/species/m/majungasaurus.html
Rugops (name meaning "wrinkle face") is a genus of abelisaurid dinosaur that lived during the late Cretaceousperiod[97-88]in what is now Africa.
Compared to the other animals in its ecosystem, Rugopswas quite a small animal. Paleontologists have recently reduced its size from 8 meters, it was actually 6 meters long. It had a weak skull and jaw so it is unlikely thatRugops was an active hunter. It was more likely a scavenger. Like other abelisaurids, Rugops possessed very short arms. They were useless in combat but were possibly useful for counterbalancing its head.
The ever attendant Rugops has a weak jaw and skull. It was no killer. It was a natural born scavenger, living off the scraps of the highly efficient killer.
Smilodon was the big cat that lived in North america and south america when Throughout the Pleistocene, till the very early Holocene. It had skills about killing preys more than lions or tigers,
its foods were American bison,mammoth and etc.
Size: Individuals usuaully around 1-1.2 meters high at the shoulder. largest species by body weight is S. populator,Its weight is about 750 pounds.
It had 2 long fangs that are sharp but they are not strong.
It was the best hunter that can kill the large prey such as mammoth.
Name: Daeodon (Hostile tooth - alternatively, Destructive tooth). Phonetic: Day-oh-don. Named By: Edward Drinker Cope - 1879. Synonyms: Ammodon, Boochoerus, Dinochoerus, Dinohyus. Classification: Chordata, Mammalia, Artiodactyla, Entelodontidae. Species: D. shoshonensis (type). Diet: Carnivore/Omnivore? Size: 3.6 meters long, 1.8 meters tall at the shoulder. Known locations: North America. Time period: Aquitanian to Burdigalian of the Miocene. Fossil representation: Several specimens.
There was once another well-known enteledont called Dinohyus (terrible pig) that was once the most well-known of the entelodonts. However later study towards the end of the twentieth century brought the realisation that Dinohyus was actually the same as another genus of entelodont called Daeodon. Under international rules governing the naming of animals, the oldest name has priority by default. This means that Dinohyus which was named by Peterson in 1905 is now a synonym to Daeodon which was named twenty-six years earlier in 1879. Despite this decision being accepted by palaeontologists for many years now, there are still some inaccurate sources that continued to treat Dinohyus as a valid genus even after it was synonymised with Daeodon. Daeodon was easily one of the largest known entelodonts, although other genera such as Paraentelodon as well as the type genus of the Entelodontidae, Entelodon, seem to have been comparable in size. The ninety centimetre long skull of Daeodon is mostly jaw with two wide jugals (cheek bones). The wide jugals are thought to have allowed for the attachment of powerful biting muscles although they also seem to have been larger in males. This sign of sexual dimorphism may have been to allow males to have more powerful bites for fighting with other males, or even making it harder for a rival to clamp its jaws around its skull, or indeed both.
Because Daeodon has a mix of different tooth types it has been imagined to be an omnivore capable of foraging for plants, particularly certain parts like roots and tubers, as well as perhaps scavenging carrion, just like warthogs have been seen to do in Africa today. Although pig like however, it is still not certain how close entelodonts are related to pigs, or even if at all. But a carrion scavenger theory might fit Daeodon better than that of an omnivore. While easily capable of killing and equally sized or smaller animal, popular theories have suggested that entelodonts would track other predators just to steal their kills, evidence of which come from a zigzagged entelodont track way that may have been left by an earlier relative of Daeodon called Archaeotherium.
Further support for a scavenger theory comes from the arrangement of the nostrils which in Daeodon seem to have faced out to the sides rather than directly forwards. This would allow for the development of a directional sense of smell since depending upon which direction the head was facing in relation to the wind, one nostril would pick up a scent a fraction of a second before the other (similar to how when you hear a sound you might hear it in one ear before the other, telling you which way to turn to see what it was). Daeodon might have been able to keep on tracking in a zigzag pattern until the point that the strength of the smell was equal in both nostrils so that it would then know to just go straight ahead.
Once a carcass was found it might already have another rival predator feeding at it, but Daeodon would be to use its immense bulk to intimidate and drive another, especially smaller, predator away. In this scenario it’s likely that by the time that Daeodon actually got there most of the choice pieces of flesh would have already been consumed, but this is where Daeodon would make real use of the strong bite force of the jaws. This bite force would have allowed a large entelodont like Daeodon to break and crack open bones, especially when caught between the posterior teeth that were closer to the fulcrum of the jaw articulation since here the full strength of the jaw closing muscles could have been brought to bear against whatever was in the mouth. One final observation that supports a diet of other animals is not actually on Daeodon itself, but the fossils of other mammals, especially herbivores, that have marks on them which closely match the dental pattern and arrangement of entelodont jaws.
informations and pictures from www.prehistoric-wildlife.com/species/d/daeodon.
Allosaurus was a theropod dinosaur from late Jurassic North America and Portugal. Allosaurus was a large dinosaur that was 28 to 39 feet long, 7 to 13 feet high, and weighed 1.5 to 4.5 tonnes. It had a large 3 foot skull with horns/crests over its eyes. It had powerfull 3 fingered arms. It walked on 2 legs. It also had a long slender neck about as long as its skull. The results on one Allosaurus specimen called "Big Al" reveal two extraordinary things about this predator:
1. A weak bite. Allosaurus had relatively weak jaw muscles. It had a bite force of only 200 kilograms, which is the same as a leopard's. So it was no bone crusher, like T. rex.
2. A strong skull: Despite its relatively weak bite, Allosaurus'skull was extremely good at transmitting force along its length.'With more openings and much lighter than T. rex's head, it was structured to carry tremendous levels of stress, as much as 6 tonnes.
This shows that Allosaurus would have used its head like a hatchet, using its strong neck muscles to ram its teeth from its upper jaw into the body of its prey. This method of attack when shown isn't pretty, nor clinical, but its ruthlessly efficient.
information and pictures from http://planetdinosaur.wikia.com/wiki/Allosaurus
Spinosaurus is the dinosaur that lived in the North Africa when about 100 million years ago.
It was a fish eater,that can ate or killed a big fish. Length of Spinosaurus from nose tip to tail is 15 meters long,its weight is about 11-20.9 tonnes and its height is about ...
