ArtsAutosBooksBusinessEducationEntertainmentFamilyFashionFoodGamesGenderHealthHolidaysHomeHubPagesPersonal FinancePetsPoliticsReligionSportsTechnologyTravel

The World's Largest Dinosaurs

Updated on June 8, 2012
Plant eater argentinosaurus (named after Argentina, where its remains were found.
Plant eater argentinosaurus (named after Argentina, where its remains were found.
Sauroposeidon. Once thought to be the largest sauropod until paleontologists confirmed it was slightly lighter than the Argentinasaurus
Sauroposeidon. Once thought to be the largest sauropod until paleontologists confirmed it was slightly lighter than the Argentinasaurus


Paleontologists say there have been dinosaurs even bigger than this massive plant eating creature, but the Argentinosaurus is the biggest sauropod backed by physical evidence. It was named after the place where its remains were found, in Argentina. It appropriately is measured at around 120 feet from head to tail. According to paleontologists, this animal may have weighed approximately or more than 100 tons. One vertebra of this sauropod ranges about or over four feet thick.

This dinosaur was first discovered when its remains were found in Argentina by Guillermo Heredia. It lived on the (which back then was an) island-continent of South America. The existence of this sauropod is said to have been around 94-97 million years ago. This was during the late creteceous epoch.


This dinosaur's existence was during the middle cretaceous period, around 110 million years ago. Its physical size was about 100 feet long, from head to tail, and is believed to have weight around or over 60 tons. Just like other sauropods, it was a plant eater. Its most recognizable characteristics were the extremely long neck of this creature, its massive body, and yet it had a very small head for a dinosaur of its sheer size.

The information paleontologist gathered about this sauropod comes from a handful of vertebrae found in Oklahoma during the year of 1999. The size of the Sauroposeidon is beat only by the Argentinasaurus and the Seismosaurus. It is unknown whether or not this dinosaur was about to lift its neck vertically, which would be around 60 feet high in the air, due to beliefs that it would have put enormous stress on the heart. They believe it ate low level vegetation.


Spinosaurus, the biggest carnivore
Spinosaurus, the biggest carnivore

There are many theories about this creature. The Spinosaurus is the weirder looking of the prehistoric dinosaurs as it had a long, spiky protuberance from its vertebrae which supported a sail of skin on the back. This dinosaur was estimated to have been between 50-60 feet long from head to tail, and weighed about 7 tons. The sail supports theories that this creature was semi-aquatic, which would explain its food of choice. Not only did it eat the meat of other dead dinosaurs, but also ate fish. It was in the theropod family.

The original fossils of the Spinosaurus are said to have been destroyed during World War II. Those remains were discovered by a German paleontologist named Ernst Stromer von Reichenbach. The fossils were placed in the Deutsches Museum in Munich. These fossils were destroyed in 1944 by an Allied bombing raid. Theories of the Spinosaurus now rely on plaster casts from the original fossils. Despite popular belief, the Spinosaurus was larger and deadlier than the Tyrannosaurus-Rex.

This dinosaur had an unusually long but narrow skull. Its mouth was comprised of short but sharp crocodile-like teeth and it had extremely large and sharp claws on its hands capable of ripping through metal. Paleontologists suggest its closest relatives were the Suchominus and the Irritator dinosaurs. It inhabited the North American shorelines, along with the Sarcosuchus (dubbed the Super Crocodile), which was about 40 feet long and thought to have weighed 10 tons. The Spinosaurus may have walked on all four limbs at some point and time.

Because the Spinosaurus ate both meat and fish, and the fact that it resided on the shorelines of prehistoric North America, paleontologists believe it lived on both the land and underwater like the modern day crocodile. This dinosaur has many similarities to underwater prehistoric creatures and crocodiles of today. The sail may have served multiple functions for the Spinosaurus. It may have been used when the creature was on land for a thermo regulation purpose and for underwater purposes. Other functions of the sail on its back may have been to intimidate other large land dinosaurs, but there is no evidence to support these claims.


    0 of 8192 characters used
    Post Comment

    • karthikkash profile image

      Karthik Kashyap 

      6 years ago from India

      definitely a wonderful hub. Voted up :)

    • Paradise7 profile image


      6 years ago from Upstate New York

      Very interesting info on the large dinosaur Argentinosaurus. I often wondered how they managed to maintain such large weight--even eating all the time, even swallowing everything whole, I would think, because their diet was vegetarian and had little fat, it's still hard to believe they could consume enough calories to keep them going.


    This website uses cookies

    As a user in the EEA, your approval is needed on a few things. To provide a better website experience, uses cookies (and other similar technologies) and may collect, process, and share personal data. Please choose which areas of our service you consent to our doing so.

    For more information on managing or withdrawing consents and how we handle data, visit our Privacy Policy at:

    Show Details
    HubPages Device IDThis is used to identify particular browsers or devices when the access the service, and is used for security reasons.
    LoginThis is necessary to sign in to the HubPages Service.
    Google RecaptchaThis is used to prevent bots and spam. (Privacy Policy)
    AkismetThis is used to detect comment spam. (Privacy Policy)
    HubPages Google AnalyticsThis is used to provide data on traffic to our website, all personally identifyable data is anonymized. (Privacy Policy)
    HubPages Traffic PixelThis is used to collect data on traffic to articles and other pages on our site. Unless you are signed in to a HubPages account, all personally identifiable information is anonymized.
    Amazon Web ServicesThis is a cloud services platform that we used to host our service. (Privacy Policy)
    CloudflareThis is a cloud CDN service that we use to efficiently deliver files required for our service to operate such as javascript, cascading style sheets, images, and videos. (Privacy Policy)
    Google Hosted LibrariesJavascript software libraries such as jQuery are loaded at endpoints on the or domains, for performance and efficiency reasons. (Privacy Policy)
    Google Custom SearchThis is feature allows you to search the site. (Privacy Policy)
    Google MapsSome articles have Google Maps embedded in them. (Privacy Policy)
    Google ChartsThis is used to display charts and graphs on articles and the author center. (Privacy Policy)
    Google AdSense Host APIThis service allows you to sign up for or associate a Google AdSense account with HubPages, so that you can earn money from ads on your articles. No data is shared unless you engage with this feature. (Privacy Policy)
    Google YouTubeSome articles have YouTube videos embedded in them. (Privacy Policy)
    VimeoSome articles have Vimeo videos embedded in them. (Privacy Policy)
    PaypalThis is used for a registered author who enrolls in the HubPages Earnings program and requests to be paid via PayPal. No data is shared with Paypal unless you engage with this feature. (Privacy Policy)
    Facebook LoginYou can use this to streamline signing up for, or signing in to your Hubpages account. No data is shared with Facebook unless you engage with this feature. (Privacy Policy)
    MavenThis supports the Maven widget and search functionality. (Privacy Policy)
    Google AdSenseThis is an ad network. (Privacy Policy)
    Google DoubleClickGoogle provides ad serving technology and runs an ad network. (Privacy Policy)
    Index ExchangeThis is an ad network. (Privacy Policy)
    SovrnThis is an ad network. (Privacy Policy)
    Facebook AdsThis is an ad network. (Privacy Policy)
    Amazon Unified Ad MarketplaceThis is an ad network. (Privacy Policy)
    AppNexusThis is an ad network. (Privacy Policy)
    OpenxThis is an ad network. (Privacy Policy)
    Rubicon ProjectThis is an ad network. (Privacy Policy)
    TripleLiftThis is an ad network. (Privacy Policy)
    Say MediaWe partner with Say Media to deliver ad campaigns on our sites. (Privacy Policy)
    Remarketing PixelsWe may use remarketing pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to advertise the HubPages Service to people that have visited our sites.
    Conversion Tracking PixelsWe may use conversion tracking pixels from advertising networks such as Google AdWords, Bing Ads, and Facebook in order to identify when an advertisement has successfully resulted in the desired action, such as signing up for the HubPages Service or publishing an article on the HubPages Service.
    Author Google AnalyticsThis is used to provide traffic data and reports to the authors of articles on the HubPages Service. (Privacy Policy)
    ComscoreComScore is a media measurement and analytics company providing marketing data and analytics to enterprises, media and advertising agencies, and publishers. Non-consent will result in ComScore only processing obfuscated personal data. (Privacy Policy)
    Amazon Tracking PixelSome articles display amazon products as part of the Amazon Affiliate program, this pixel provides traffic statistics for those products (Privacy Policy)