1.Puertasaurus
Puertasaurus is a genus of titanosaurian sauropod that lived during the Late Cretaceous. Its bones were recovered from the Pari Aike Formation, which is dated to be middle Cenomanian in age. It lived in what is now Patagonia. The type species, Puertasaurus reuili, is named in honor of Pablo Puerta and Santiago Reuil, who discovered the specimen in January 2001. Puertasaurus is based on a partial spinal column: a neck vertebra, a dorsal (back) vertebra, and two tail vertebrae.[1]
Longest dinosaur yet discovered by Fernando Novas.
Estimated length : 35-40 m.
2. Sauroposeidon
Sauroposeidon (/ˌsɔːroʊpoʊˈsaɪdən/ SOR-o-po-SY-dən; meaning "earthquake god lizard", after the Greek god Poseidon[1][2]) is a genus of sauropod dinosaur known from several incomplete specimens including a bone bed and fossilized trackways that have been found in the American states of Oklahoma, Wyoming, and Texas. The fossils were found in rocks dating from near the end of the Early Cretaceous (Aptian–early Albian), a time when sauropod diversity in North America had greatly diminished. It was the last known North American sauropod prior to an absence of the group on the continent of roughly 40 million years that ended with the appearance of Alamosaurus during the Maastrichtian.
Probably the tallest ever to walk on earth, able to extend its neck to 18m (60 ft).
Estimated length : 34 m.
3.Supersaurus
Supersaurus (meaning "super lizard") is a genus of diplodocid sauropod dinosaur first discovered by Vivian Jones of Delta, Colorado, in late Jurassic period rocks of the middle Morrison Formation of Colorado in 1972, and later in Portugal under the name S. lourinhanensis.[1] The fossil remains came from the Brushy Basin Member of the formation, dating to about 153 million years ago.[2]
Claims of the length of upto 40m (130 ft) have been made by some authorities.
Estimated length :33-34 m.
4. Bruhathkayosaurus
Bruhathkayosaurus (/bruːˌhæθkeɪoʊˈsɔːrəs/; meaning "huge bodied lizard") is a dinosaur, with remains found in India, claimed by some researchers to have been the largest dinosaur that ever lived. Estimates of size exceed the titanosaur Argentinosaurus,[1] as longer than 35 metres (115 ft) and weighing over 80-100 tons. The accuracy of this claim, however, has been mired in controversy and debate. All the estimates are based on Yadagiri and Ayyasami's 1989 paper, which announced the find[2] (see below: Size estimates).
Estimated length : 28-34 m.
5. Hudiesaurus
Hudiesaurus (meaning "butterfly lizard") is a herbivorous sauropod genus of dinosaur from China. The fossil remains of Hudiesaurus were in 1993 found by a Chinese-Japanese expedition near Qiketia in Shanshan, Xinjiang province. The type (and only named) species, Hudiesaurus sinojapanorum, was named and described by Dong Zhiming in 1997. The generic name is derived from Mandarin hudie, "butterfly" and refers to a flat butterfly-shaped process on the front base of the vertebral spine. The specific name refers to the members of the expedition but can also be read as "central part" in Chinese, a pun on the Japanese Chunichi Shinbun (again "central part") press group, which financed the research.[1]
Incomplete remains found in china. One of the longest of sauropods.
Estimated length : 30 m
6. Turiasaurus
Turiasaurus (meaning "Turia lizard"; Turia is the Latin name of Teruel) is a genus of sauropod dinosaurs. It is known from a single fossil specimen representing the species T. riodevensis, found in a Spanish rock formation dated to the Jurassic-Cretaceous boundary, around 145 million years old.
Named after Turia, the latin name of Teruel. It is found in Spain.
Estimated length : 30 m.
7.Giraffatitan
Giraffatitan, meaning "giant giraffe", is a genus of sauropod dinosaur that lived during the late Jurassic Period (Kimmeridgian–Tithonian stages). It was originally named as an African species of Brachiosaurus (B. brancai) but this has since been changed. Giraffatitan was for many decades known as the largest dinosaur but recent discoveries of several larger dinosaurs prove otherwise: giant titanosaurians appear to have surpassed Giraffatitan in terms of sheer mass. Also the sauropod dinosaur Sauroposeidon is estimated to be taller and possibly heavier than Giraffatitan. All size estimates for Giraffatitan are based on the specimen HMN SII a subadult individual between 21.8–22.5 metres (72–74 ft) in length and about 12 meters (39 ft) tall. Mass estimates are varied from as little as 15 tonnes (17 short tons) to as much as 78.3 tonnes (86.3 short tons) but there is evidence supporting that these animals could grow larger HMN XV2, represented by a fibula 13% larger than the corresponding material on HMN SII which might have attained 26 metres (85 ft) in length or longer.[1]
Found in Tanzania. A skeleton in the Humboldt Museum, Berlin, is the longest dinosaur on display
Estimated length : 25-30 m.
8. Argyrosaurus
Argyrosaurus (/ˌɑːrdʒaɪəroʊˈsɔːrəs/ AR-ji-ro-SAWR-əs) is a genus of herbivorous titanosaurid dinosaur that lived about 90 million years ago, during the Late Cretaceous Period of what is now Argentina.
From the late Cretaceous period is believed to have stood 8m (26 ft) tall.
Estimated length : 20-30 m.
9. Diplodocus
Diplodocus (/dɪˈplɒdəkəs/,[1][2] /daɪˈplɒdəkəs/,[2] or /ˌdɪploʊˈdoʊkəs/[1]) is an extinct genus of diplodocid sauropod dinosaurs whose fossils were first discovered in 1877 by S. W. Williston. The generic name, coined by Othniel Charles Marsh in 1878, is a neo-Latin term derived from Greek διπλός (diplos) "double" and δοκός (dokos) "beam",[1][3] in reference to its double-beamed chevron bones located in the underside of the tail. Chevron bones of this particular form were initially believed to be unique to Diplodocus; since then they have been discovered in other members of the diplodocid family as well as in nondiplodocid sauropods, such as Mamenchisaurus. It is now common scientific opinion that Seismosaurus hallorum is a species of Diplodocus.
It was long and thin, lightweight dinosaur. Also one of the most stupid dinosaurs, having smallest brain in relation to its body size. Its name means double beam, given by paleontologist Othneil C Marsh.
Estimated length : 20-30 m.
10. Argentinosaurus
Argentinosaurus (meaning "Argentine lizard"[1]) is a genus of titanosaur sauropod dinosaur first discovered by Guillermo Heredia in Argentina. The generic name refers to the country in which it was discovered. The dinosaur lived on the then-island continent of South America somewhere between 97 and 93.5 million years ago,[2] during the Late Cretaceous Period. It is among the largest known dinosaurs.
Estimates of the length of argentinosaurus vary, some earlier claims putting it at up to 35m (110 ft).
Estimated length : 22-26 m.
Bonus: Battles of giants
Although Tyrannosaurus rex which is 12.8 m/ 42 ft and 6.8 tonnes is the best known carnivorous dinosaur.
Another Cretaceous monster, Spinosaurus which is 18 m/ 59 ft and 9 tonnes was larger
Source - Wikipedia