After the painstaking experience of reading that, I can see you're happy.

Oh, and Brachiosaurus was nowhere the largest animals to ever live. It's either Argentinasaurus or Seismosaurus.

Are the Ultrasaurus and Brachiosaurus really different species? They look exactly the same but different size. There's even a Supersaurus that's inbetween. I just think some grew bigger than others or Brachio is just younger than Ultra.

yep i know'the biggest one is ULTRASAURUS

I think you didn't read my post. The largest animals ever to live are Argentinosaurus and Seismosaurus. These two behemoths reached over 150 feet long and 100 tons. Compared to them, the 98 foot Ultrasauros looked puny.

Length doesn't equal bigger.

But mass does, and Seismosaurus and Argentinosaurus were MUCH, MUCH more massive Almost 50 tons more.

An Ultrasaurus is estimated at over 100 tons. That's not smaller than what you've been saying.
Don't make me whip out comparison pictures.

100 tons? The most I heard is 70

Well, there is no doubt in the paleontology community that seismosaurus and argetinosaurus are the largest.

I found this little diddy. It has an Ultrasaurus in the middle with a couple other of the largest sauropods.

I found this little diddy. It has an Ultrasaurus in the middle with a couple other of the largest sauropods.

Typically i read the Seismosaurus was 30-70 tons. But yeah even the Brachiosaurus is at around 80 tons.

It would be nice to know what the other sauropods were...Seismosaurus and Argentinosaurus are relatively new compared to Ultrasauros.

Unless Phil Currie is wrong, which he isn't, Seismosaurus and Argentinosaurus are the largest dinosaurs. Ultrasauros did once hold the title, but that was toppled with the discovery of Brukthyosaurus and Sauroposeidon. And in time, they were toppled by the titanosaur gargantuans Seismosaurus and Argentinosaurus

He's wrong. I can't find anywhere else that supports that. Seismosaurus definitely ain't the largest. Argentinosaurus is about equal with Ultrasaurus as far as i can find. Sauroposeidon is barely larger than a Brachiosaurus it mainly has a much longer neck. Brukthyosaurus seems to be the largest i can find with it weighing 140+ tons.

Many sources contradict, and some are outdated. Some sites say Ultrasauros, some say Seismosaurus. Who knows, there is so much speculation involved. I'll tell you that I agree with Currie, as he is one if the world's foremost experts.

We jut may have to wait until a complete skeleton is found...Especially since Ultrasauros and Supersaurus share bones, and Seismosaurus and Argentinosaurus have incomplete skeletons.

I just went by the general consensus of tonnage and Brukthyosaurus seems to be the undisputed heaviest.

After the painstaking experience of reading that, I can see you're happy.

Oh, and Brachiosaurus was nowhere the largest animals to ever live. It's either Argentinasaurus or Seismosaurus.

I think not.

<********"http://en.wikipedia.org/wiki/Blue_Whale" target="_blank">The Blue Whale is the largest animal that ever lived on this planet, last time I checked, and as far as we know.</a>

Harte

No, it's the largest mammal, now a days. But not the largest creature to have walked the earth.

The Blue Whale (Balaenoptera musculus) is a marine mammal belonging to the suborder of baleen whales. At up to 30 metres (98 feet) in length and 177 metric tonnes (196 short tons) or more in weight, it is believed to be the largest animal to have ever lived on Earth.[2]

^ See for example: http://nationalzoo.si.edu/Animals/AnimalRecords/ and http://science.howstuffworks.com/question687.htm

Largest Animal
Blue whales are the largest animals of all time. Females grow to a length of 79 to 89 feet, weighing well over 100 tons. The heaviest blue whale ever weighed was more than 190 tons, and the longest ever measured was more than 108 feet long.

By considerable measure, the largest known animal on Earth is the blue whale. Mature blue whales can measure anywhere from 75 feet (23 m) to 100 feet (30.5 m) from head to tail, and can weigh as much as 150 tons (136 metric tons). That's as long as an 8- to 10-story building and as heavy as about 112 adult male giraffes! These days, most adult blue whales are only 75 to 80 feet long; whalers hunted down most of the super giants. Female blue whales generally weigh more than the males. The largest blue whale to date is a female that weighed 389,760 pounds (176,792 kg).

...A blue whale's head is so wide that an entire professional football team -- about 50 people -- could stand on its tongue. Its heart is as big as a small car, and its arteries are wide enough that you could climb through them. Even baby blue whales dwarf most animals. At birth, a blue whale calf is about 25 feet (7.6 m) long and weighs more than an elephant. And they do grow up fast: During the first 7 months of its life, a blue whale drinks approximately 100 gallons (379 liters) of its mother's milk per day, putting on as much as 200 pounds (91 kg) every 24 hours. An adult blue whale can eat more than 4 tons (3.6 metric tons) of krill, a tiny shrimp-like creature, every day.

This puts blue whales well above any known land mammal in terms of size. Most people believe that the largest animals to ever exist on Earth were the dinosaurs. However, one of the largest land dinosaurs, the sauropod Argentinosaurus, weighed only about 180,000 pounds (81,647 kg). That's little more than half the size of an adult blue whale. It makes a lot of sense that the world's largest animal would be a sea creature. Land animals have to support their own weight, whereas sea creatures get some help from the water.

Not much of Argentinosaurus has been recovered: just some back vertebrae, tibia, fragmentary ribs, and sacrum. One vertebra had a length of 1.3 metres and the tibia was about 155 centimetres (58 inches) However, the spectacular proportions of these bones and the familiarity of the species' sauropod relatives allows paleontologists to estimate that full-grown specimens reached some 35 metres (115 feet)in length. Weight was perhaps 80 to 100 tonnes. It is the largest dinosaur that we have good evidence for. However, it would be smaller than Bruhathkayosaurus, which may have reached 44 metres (145 feet) long and weighed 180 tons and the poorly known Amphicoelias fragilimus which may have been up to 60 meters (200 feet) long. However, these estimates cannot be validated due to lack of evidence.

Seismosaurus, meaning "Earth-shaking lizard," was one of the giant herbivorous dinosaurs of the late Jurassic period. It lived from the Kimmeridgian to the Tithonian age, approximately 154 to 144 million years ago. Its size is highly disputed, with estimates ranging from 37-45m(123.3-150feet) long. Based in Gillete's calculations, it may have been 39 to 52 metres (128 to 170 ft) long. Although some weight estimates range as high as 113 tonnes (125 US short tons), it may have weighed about 22 to 27 tonnes (25 to 30 US short tons).

http://en.wikipedia.org/wiki/Argentinosaurus
http://en.wikipedia.org/wiki/Seismosaurus

The only reason the blue has the title is because we cannot accurately predict the weight of titanosaurs.

However, it would be smaller than Bruhathkayosaurus, which may have reached 44 metres (145 feet) long and weighed 180 tons and the poorly known Amphicoelias fragilimus which may have been up to 60 meters (200 feet) long.

Note that frogfish said:"Oh, and Brachiosaurus was nowhere the largest animals to ever live. It's either Argentinasaurus or Seismosaurus." (My emphasis) Frogfish did not say "the largest creature to have walked the earth."

So, according to the link I gave you:
My emphasis.

The footnote ([2]) from this quote is as follows:
Here's what those sites have to say.
National Zoo:
how stuff works:
Again, my emphasis.

So, let's go kill all of them to make corsets and perfume!

Harte

After the painstaking experience of reading that, I can see you're happy.

Oh, and Brachiosaurus was nowhere the largest animals to ever live. It's either Argentinasaurus or Seismosaurus.

Oh, and Brachiosaurus was nowhere the largest animals to ever live. It's either Argentinasaurus or Seismosaurus.

After the painstaking experience of reading that, I can see you're happy.

Oh, and Brachiosaurus was nowhere the largest animals to ever live. It's either Argentinasaurus or Seismosaurus.

I just read the first post, did anyone understand that?

blue whale is still bigger lol with a tounge the size of a elephant and 50+ people fitting in its mouth an artery u can safly fit a baby threw and reachin 100+ feet and aobut 80 tonnes larger then ur Argentinasaurus or Seismosaurus. but again were comparing land animal verus sea soo

I often wonder why the blue whale is hailed as the largest creature ever to live on the Earth. I never was really personally able to accept that. There seems to be a lot of evidence to the contrary, so why are people still claiming blue whales are the biggest animal ever? Is it because they don't have full skeletons of the dinosaurs that were allegedly bigger?

I often wonder why the blue whale is hailed as the largest creature ever to live on the Earth. I never was really personally able to accept that. There seems to be a lot of evidence to the contrary, so why are people still claiming blue whales are the biggest animal ever? Is it because they don't have full skeletons of the dinosaurs that were allegedly bigger?

just think of the Deinocheirus's two huge arms...

But it's not like the Deinocheirus is 150 feet long...it's more around 30. This isn't pure guesswork. there is a reason paleontologists claim that titanosaurs can reach lengths of over 125 feet.

After the painstaking experience of reading that, I can see you're happy.

What I meant was that at first, the scientist thought that the Deinocheirus was much bigger because of the size of the arms, but now, they think(! not know!) that they were just oversized for some reason... Or, think of the Bruhathkayosaurus, which was first thought to be a theropod. Now, they are saying it was a humongous sauropod. If you only have a couple of bones, you never can be sure. With the Blue Whale, you have a living, breathing 180 ton animal which you can go and see in its full size, so for me it is the larges animal ever to have lived until proven otherwise by the discovery of a more or less full skeleton.

There's always the chance of finding more remains...or even a complete specimen.

Like I said, I don't personally believe the blue whale is the biggist thing to live.