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Description
Argentinosaurus huinculensis
Named by Jose Bonaparte and Rudolpho Coria, 1993
Diet: Herbivore (Mainly a high-browser of trees such as conifers)
Type: Sauropodomorph sauropod (Macronarian titanosaurian) dinosaur
Size: Because of the fragmentary remains known about this animal, little is known about the actual size and the estimate sizes were varied, but the most confirmed size of this dinosaur was between 98 to 110 feet (30 to 33.5 meters) long and weighed around 70 to 90 tons, based on the more complete remains of its relatives as a guide.
Region: South America (Argentina)
Age: Late Cretaceous (97 to 94 million BC; Cenomanian)
Enemies: Mapusaurus (it is mostly the young and the weak that are a softer target as the healthy adults are too large and dangerous for them to take down)
Episode: Chased by Dinosaurs - Land of the Giants
Info: Oftenly considered to be one of the biggest dinosaurs (and land animals) that ever lived, if not the biggest, only 10% of Argentinosaurus is known which is fragmentary and because of this, the estimated sizes were varied. But judging from the size of the fossils ranging from a 4-foot (1.3-meter), 1 ton vertebrae, to a 6-foot (1.8-meter) shinbone, as well as computer studies and based on the sizes of its close relatives, we can tell that Argentinosaurus must have been a huge, massive sauropod that would've shook the ground beneath its own weight and would've had few predators that's brave enough to attack such an enormous animal.

Note: Based on , upload.wikimedia.org/wikipedia… , and and the Argentinosaurus illustration by Juan Carlos Alonso in Ancient Earth Journal: The Early Cretaceous book, but give it spikes on its hips! It was hard since this dinosaur was known from scant remains.

You know, I said that this, Brachiosaurus (or Giraffatitan), and Diplodocus were my favorite sauropods, because when I was a kid, I was told that the biggest dinosaur of all time was "Ultrasaurus/ Ultrasauros" and "Seismosaurus", which turned out that they don't exist as "Seismosaurus" is now a Diplodocus and "Ultrasaurus" is now a Brachiosaurus and part of another sauropod species Supersaurus. When I was in my preteens to my high school years, I even believe that Argentinosaurus was the largest dinosaur that ever lived, because of its magnificent size and its portrayl in books, films, and documentaries, such as Chased by Dinosaurs, BBC's Horizon's Extreme Dinosaurs: The Science of Giants, Dinosaurs 3D: The Giants of Patagonia, and Planet Dinosaur. Not only its size, but its depiction in a sort of coming of age story from baby to adult based on the Auca Mahuevo nesting site (although it is millions of years after Argentinosaurus' extinction) and being in a predator-prey relationship with one of the largest meat-eaters, Giganotosaurus (which is inaccurate as Giganotosaurus was already extinct when Argentinosaurus was around) and later Mapusaurus (which is correct as both these dinosaurs lived together at the same time and place and both found in the Huincul Formation). However, I also did hear some even bigger dinosaur species that are mostly known from few remains and have since disappeared such as "Amphicoelias fragillimus" (known from a vertebrae Edward Drinker Cope found in Garden Park, Colorado, 1879 and has since disappeared when Cope's fossils were being shipped to New York, but only drawings and photographs survived), although many scientists, experts, and enthusiasts believe that this dinosaur doesn't really existed. So Argentinosaurus may still often considered to be largest creature that ever lived, but I did hear that evidence that Alamosaurus, Puertasaurus, and Patagotitan (which I saw a display of it at New York's American Museum of Natural History and I saw it in a David Attenborough documentary) might have rivaled it in size.

So sadly, its not THE last sauropod that ever lived, but this is the last sauropod species in the WWD series! Yeah, no Puertasaurus, no Paralatitan, no Futalognkosaurus, no Dreadnoughtus, no Saltasaurus, no Rapetosaurus, hell, no Alamosaurus! And with the passing of the last of the sauropods like Alamosaurus in the K-Pg Extinction event 66 million BC, life on Earth will never again... be THIS LARGE!

Requested by

Walking with Dinosaurs is owned by BBC

Description
Argentinosaurus huinculensis
Named by Jose Bonaparte and Rudolpho Coria, 1993
Diet: Herbivore (Mainly a high-browser of trees such as conifers)
Type: Sauropodomorph sauropod (Macronarian titanosaurian) dinosaur
Size: Because of the fragmentary remains known about this animal, little is known about the actual size and the estimate sizes were varied, but the most confirmed size of this dinosaur was between 98 to 110 feet (30 to 33.5 meters) long and weighed around 70 to 90 tons, based on the more complete remains of its relatives as a guide.
Region: South America (Argentina)
Age: Late Cretaceous (97 to 94 million BC; Cenomanian)
Enemies: Mapusaurus (it is mostly the young and the weak that are a softer target as the healthy adults are too large and dangerous for them to take down)
Episode: Chased by Dinosaurs - Land of the Giants
Info: Oftenly considered to be one of the biggest dinosaurs (and land animals) that ever lived, if not the biggest, only 10% of Argentinosaurus is known which is fragmentary and because of this, the estimated sizes were varied. But judging from the size of the fossils ranging from a 4-foot (1.3-meter), 1 ton vertebrae, to a 6-foot (1.8-meter) shinbone, as well as computer studies and based on the sizes of its close relatives, we can tell that Argentinosaurus must have been a huge, massive sauropod that would've shook the ground beneath its own weight and would've had few predators that's brave enough to attack such an enormous animal.

Note: Based on , upload.wikimedia.org/wikipedia… , and and the Argentinosaurus illustration by Juan Carlos Alonso in Ancient Earth Journal: The Early Cretaceous book, but give it spikes on its hips! It was hard since this dinosaur was known from scant remains.

You know, I said that this, Brachiosaurus (or Giraffatitan), and Diplodocus were my favorite sauropods, because when I was a kid, I was told that the biggest dinosaur of all time was "Ultrasaurus/ Ultrasauros" and "Seismosaurus", which turned out that they don't exist as "Seismosaurus" is now a Diplodocus and "Ultrasaurus" is now a Brachiosaurus and part of another sauropod species Supersaurus. When I was in my preteens to my high school years, I even believe that Argentinosaurus was the largest dinosaur that ever lived, because of its magnificent size and its portrayl in books, films, and documentaries, such as Chased by Dinosaurs, BBC's Horizon's Extreme Dinosaurs: The Science of Giants, Dinosaurs 3D: The Giants of Patagonia, and Planet Dinosaur. Not only its size, but its depiction in a sort of coming of age story from baby to adult based on the Auca Mahuevo nesting site (although it is millions of years after Argentinosaurus' extinction) and being in a predator-prey relationship with one of the largest meat-eaters, Giganotosaurus (which is inaccurate as Giganotosaurus was already extinct when Argentinosaurus was around) and later Mapusaurus (which is correct as both these dinosaurs lived together at the same time and place and both found in the Huincul Formation). However, I also did hear some even bigger dinosaur species that are mostly known from few remains and have since disappeared such as "Amphicoelias fragillimus" (known from a vertebrae Edward Drinker Cope found in Garden Park, Colorado, 1879 and has since disappeared when Cope's fossils were being shipped to New York, but only drawings and photographs survived), although many scientists, experts, and enthusiasts believe that this dinosaur doesn't really existed. So Argentinosaurus may still often considered to be largest creature that ever lived, but I did hear that evidence that Alamosaurus, Puertasaurus, and Patagotitan (which I saw a display of it at New York's American Museum of Natural History and I saw it in a David Attenborough documentary) might have rivaled it in size.

So sadly, its not THE last sauropod that ever lived, but this is the last sauropod species in the WWD series! Yeah, no Puertasaurus, no Paralatitan, no Futalognkosaurus, no Dreadnoughtus, no Saltasaurus, no Rapetosaurus, hell, no Alamosaurus! And with the passing of the last of the sauropods like Alamosaurus in the K-Pg Extinction event 66 million BC, life on Earth will never again... be THIS LARGE!

Requested by

Walking with Dinosaurs is owned by BBC