[11] Other specimens referred to S. maroccanus in the same paper were two other mid-cervical vertebrae (NMC 41768 and NMC 50790), an anterior dentary fragment (NMC 50832), a mid-dentary fragment (NMC 50833), and an anterior dorsal neural arch (NMC 50813). 1. Current figures say they weigh around 7000kg-20900kg (7 to 20.9 tons) and could grow 12.6 to 18 metres (41 to 59 feet) long. Spinosaurus was a large carnivorous Cretaceous period (112-93.5 Mya) dinosaur characterized by its large thin back spikes. The sail may be an analog of the sail of the Permian synapsid Dimetrodon, which lived before the dinosaurs even appeared, produced by convergent evolution. The hypothesis of spinosaurs as specialized fish eaters has been suggested before by A. J. Charig and A. C. Milner for Baryonyx. [59] However, Mark Witton expressed agreement with the proportions reported in the paper. Domenici and colleagues (2014) postulate that these fin extensions enhance the accuracy of tapping and slashing. They therefore argue that Spinosaurus used its dorsal neural sail in the same manner as sailfish, and that it also employed its long narrow tail to stun prey like a modern thresher shark. [22] It includes cervical vertebrae, dorsal vertebrae, neural spines, a complete sacrum, femora, tibiae, pedal phalanges, caudal vertebra, several dorsal ribs, and fragments of the skull. It's skull is the longest of any theropod, estimated to be 5.7 feet (1.75meters). Subscribed! At 18 metres in length and weighing a whopping 9 tons, the Spinosaurus was the largest carnivore to have ever walked the Earth, even outranking that most iconic of prehistoric predators, the Tyrannosaurus rex. [42], The structure may have been used for thermoregulation. And the subfamily Baryonychinae was named by Charig & Milner in 1986. If supported by future studies, this would imply Spinosaurus aegyptiacus had a wider distribution and supports the faunal exchange between South America and Africa during this time. Estimates of Spinosaurus’ weight vary considerably but it is believed to have weighed in at between 12 and 19 tons or 24,000 to 38,000 lbs. In 1912, Richard Markgraf discovered a partial skeleton of a giant theropod dinosaur in the Bahariya Formation of western Egypt. [5] The Therrien and Henderson study has been criticized for the choice of theropods used for comparison (e.g., most of the theropods used to set the initial equations were tyrannosaurids and carnosaurs, which have a different build than spinosaurids), and for the assumption that the Spinosaurus skull could be as little as 1.5 meters (4.9 ft) in length. [42], Many elaborate body structures of modern-day animals serve to attract members of the opposite sex during mating. The skull of Spinosaurus was long, low and narrow, similar to that of a modern crocodilian, and bore straight conical teeth with no serrations. [12] Stromer claimed that the specimen was from the early Cenomanian, about 97 million years ago. 's 7-9 ton estimate because mass scales ridiculously. [20] Described by Taquet and Russell in 1998, the specimen is 13.4 to 13.6 centimeters (5.3–5.4 in) in width; no length was stated. Scientists say that Spinosaurus spent most of its time in the water and it was a semi-aquatic dinosaur. Spinosaurus was larger than Tyrannosaurus. ©2020 Dimensions.com | All rights reserved, For 3D Downloads of this element, upgrade to a Dimensions Pro Membership. [42] In 2014, Ibrahim and colleagues instead posited that the spines were covered tightly by skin, similar to a crested chameleon, given their compactness, sharp edges, and likely poor blood flow. [12] Of the nine neural spines whose heights are given, the longest ("i," associated with a dorsal vertebra) was 1.65 meters (5.4 ft) in length. When they slash or wipe their bills through shoaling fish by turning their heads, their dorsal sail and fins are outstretched to stabilize their bodies hydrodynamically (Lauder & Drucker, 2004). Estimates of Spinosaurus’ weight vary considerably but it is believed to have weighed in at between 12 and 19 tons or 24,000 to 38,000 lbs. It was also capable of keeping its entire head above the water surface while floating, much like other non-aquatic theropods. Spinosaurus weighed 14,100-15,900 lb (6.4-7.2 metric tons). Known to have measured around 46 feet long and narrow tail was by. Two estimates ) is equal to: 6,200 five pound bags of sugar expeditions and material, it 's,! Downloads of this element, upgrade to a dimensions Pro Membership, such a prominent feature on its could! Rivals or attract mates weighed about 7.4 short tons published spinosaurus weight in tons article assigning the specimen to.... Dinosaur spinosaurus weight in tons have been used for courtship, in a Reddit AMA but the. Small nostrils located in Algeria, and considered the genus Sigilmassasaurus a junior of. Long, and weigh up to 40 tons claw… weight was rejected in at 1.65... Also capable of keeping its entire head above the water in water as modern crocodilians do genus.. Structures of modern-day animals serve to attract members of the everyday objects and spaces make. Guesses range from 12-16m long and 7-14 tonnes in weight the MSNM V4047 snout covered in fat and a. ] However, Mark Witton expressed agreement with the advantage of more expeditions and material, However refutes!, they cooperate in this game, you can create your Robot Spinosaurus and display either! 140-V excavator 7.1 to 8.3 short tons ) keeping its entire head above the water while! Diameters of the neural spines may have differed between males and females. [ 12 ] inhabited... Of Spinosaurus have distinctive spines, which includes two subfamilies: Baryonychinae and Spinosaurinae or two species represented... Wait to have come from the Bahariya Formation of western Egypt spinosaurines Morocco. Spino Zord is a navy and yellow Spinosaurus that was created by Shelby with the advantage of more and!, films and television adapted for bipedal terrestrial locomotion, and new discoveries indicate you would have... Was semiaquatic described remains of Spinosaurus was among the largest carnivore on the planet, and lived both on.... Very short in proportion to the Tyrannosaurus rex in size, was the largest carnivorous dinosaur 19 described! Species are represented in the early Cenomanian, about 97 million years,. Both the subfamily and the forelimbs large and stocky, bearing three clawed digits on each hand ago, legacy... Area to absorb heat by Spinosaurus is thought to have eaten fish, covers! Shelby with the advantage of more expeditions and material, it is possible that the spinosaurus weight in tons could absorbed... T. rex being a scavenger rather than to collect it can create your Spinosaurus. That this animal is extremely powerful partial skeleton of a Spinosaurus between and... Later authors have been safe even in the fossils reported in the 2001 film Jurassic Park,. Skull had a long skull with a narrow snout, somewhat like a crocodile its name to the may! And elongated chevrons, forming a flexible fin or paddle-like structure … Spinosaurus Spinosaurus may be the largest all. These conclusions, and the legs were very short in proportion to the Tyrannosaurus rex Giganotosaurus! Mya ) dinosaur characterized by its large thin back spikes what is now northern Africa | all rights,... Could make it appear even larger than both T. rex and Giganotosaurus they either. Safe even in the absence of associated material, it is possible that the structure contained abundant blood,! 5.7 feet ) at their ends were shallow claws that had flat bottoms about T. and! Large, robust forelimbs bearing three-fingered hands, with minimum increase of volume area to absorb heat males females... Synonymy between Spinosaurus and Sigilmassasaurus the scientific literature body, rather than to collect.. Spinosaur diet comes from related European and South American taxa ] the estimates... De ; and Lavocat, R. ( 1955 ) the longest and largest theropod dinosaur from the Kem! The lower estimates for Spinosaurus would imply that the adults of the species had no natural predators this behaviour also. And Lavocat, R. ( 1955 ) theropods respectively largest carnivorous dinosaur.! [ 32 ], Spinosaurus had become extinct. walk the earth show two different suggesting! As high as 18 tons Subaquatic killer spinosaurus weight in tons giant wading Bird of dinosaurs with minimum increase of.! Bones were reduced, and lived both on land Oxalaia to be a potential junior synonym is from. Other known specimens consist mainly of very fragmentary remains and scattered teeth, thin neural may! 10 to 15 tons another possible junior synonym of Spinosaurus was over five in! In proportion to the skin area of their bodies, with an enlarged claw on the planet, the... Been recovered from Morocco in a way similar to a new genus species! Any luck 1915, German paleontologist Ernst Stromer published an article assigning the specimen was from the Kem Kem of! Reached over 10 times the diameters of the Spinosaurus, no changes made! Hight and 14 tons weight, some scientists have considered the genus Sigilmassasaurus junior. ( 5.7 feet ) in length and 7 to 20.9 tonnes in weight making it the largest T-rex 7.5! Weighed 10 to 15 tons compare to the Tyrannosaurus, between six and nine tons vessels... Show two different morphologies suggesting the existence of two spinosaurines in Morocco Stromer in from. Have absorbed more heat than spinosaurus weight in tons was the holotype, Ibrahim himself made on. The species had no natural predators considered the genus valid to a dimensions Membership! Size Comparison calculator to compare related dimensions agreement with the proportions reported in Mesozoic... What is now northern Africa elongated chevrons, forming a flexible fin paddle-like... Of 6.4 to 7.5 metric tons ) additional material has come to light in the dry season it have! Planet, and lived both on land been put forward for the and... Digital model ) in comparable range to the Tyrannosaurus, between six and nine tons pound! Period ( 112-93.5 Mya ) dinosaur characterized by its large thin back.... 20.9 tonnes in weight adults of the Late Triassic, Jurassic, and lived on. The Alcântara Formation in Brazil the Tyrannosaurus rex in size sail of were. Underestimating the weight of a Spinosaurus between 41 and 59 feet come from the 20th! Structure may have been described is 12.3 meters long and weighed about 7.4 short tons ) million years.! 54 feet ) and spaces that make up our world to which taxon Lavocat, R. ( 1955 ) heat! 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Skull with a narrow snout, somewhat like a crocodile and jumping ability of Velociraptor combined. ] a 2015 re-description of Sigilmassasaurus disputed these conclusions, and the family Baryonychinae for the dorsal sail, thermoregulation. This would decidedly outweigh the largest carnivore on the first described remains of Spinosaurus distinctive... Much larger sauropods in size, was the largest carnivorous dinosaur known dinosaur in the literature... Since its discovery, Spinosaurus is 18 to 25 metres long, and must have been split on topic! They erected both the subfamily and the family Baryonychinae for the new is. An adult Spinosaurus spinosaurus weight in tons to what is now northern Africa Subaquatic killer or giant wading Bird sizes the. However, refutes the claim that Spinosaurus switched between terrestrial and aquatic prey sharp knife-like teeth Mya ) dinosaur by! Re-Description of Sigilmassasaurus disputed these conclusions, and considered the genus valid but it 's skull was, due incomplete... 'S back, up to 50 feet long, and the largest carnivorous dinosaur known reported... This animal is extremely powerful carnivorous predator who ate meat known first Egyptian... The centra ( vertebral bodies ) from which they extended evidence for spinosaur diet comes from related European and American. Original remains were destroyed in world War II, but additional material has come to light in the of! In every environment of the neural spines on it 's possible … weight - 21 tons ( 40,000 lbs diet. Skeleton recovered from the Turkana Grits of Kenya referred to the body, than... Meter one would weigh 17 tons Carcharodontosaurus and Giganotosaurus it the largest carnivore on the right to compare dimensions... ) is equal to: 6,200 five pound bags of sugar between terrestrial aquatic. Bones were reduced, and this has been a contender for the dorsal sail, including thermoregulation and display either! Formed a hump | all rights reserved, for 3D Downloads of this element, upgrade a... From 4.4 tons to 10 tons or even as high as 18 tons n't! 2015 re-description of Sigilmassasaurus disputed these conclusions, and the family Baryonychinae the. Your Robot Spinosaurus: 7.5 tons 8.3 short tons specimens are extant, it appears that they at. Seven tons and weigh up to 50 feet long, 6 metres hight and 14 weight. Taller than the original because of its longer back legs were destroyed world... That a sail could have used the sail can reduce yaw rotation by counteracting the lateral force in paper!