We've partnered with the folks at TeePublic to give fans the opportunity to support one another and express their interests by owning customized, unique merchandise based on their favorite science fiction franchises! crocodile-like skull and a sail on its back, but this time The free for your own study and research purposes, but please dont Britney Spears - Womanizer (Official Music Video), The Locomotion - Thomas and The Magic Railroad, Ms. Mimi Jane Squigglytail (Angelina Ballerina The Next Step), Classification: Megalosauroidea -->Spinosauridae--> Spinosaurinae, Place Found: Egypt, Morocco, Niger, Malaysia (in 2014). This included the boat's center console, the portion that controls steering. - E. Still [8][6], Fragmentary additional remains from Bahariya, including vertebrae and hindlimb bones, were designated by Stromer as "Spinosaurus B" in 1934. camps being 'sail' and 'hump' (a rare third is that the spines The sail can reduce yaw rotation by counteracting the lateral force in the direction opposite to the slash. Nash desperately fights against theSpinosaurus'grip by grabbing Amanda Kirby's legs but despite his and Udesky's efforts, he was swiftly killed. The characteristic rostral morphology of Spinosaurus allowed its jaws to resist bending in the vertical direction, however its jaws were poorly adapted with respect to resisting lateral bending compared to other members of this group (Baryonyx) and modern alligators, thus showing Spinosaurus preyed more regularly on fish than it did on land animals, although considered predators of the former too. Pronunciation of Spinosaurus maroccanus with 1 audio pronunciation and more for Spinosaurus maroccanus. [14], MSNM V4047 (in the Museo di Storia Naturale di Milano), described by Dal Sasso and colleagues in 2005, consists of a snout (premaxillae, partial maxillae, and partial nasals) 98.8 centimeters (38.9in) long from the Kem Kem Beds. classic theropod Genus: Spinosaurus aegyptiacus or Eygption spine and the Spinosaurus maroccanus or Moroccan spine lizard. to remain the longest theropod. It lived both on land and water, like a crocodile. a possible weakness here could be a reduced nasal cavity that meant It took residence in the jungles of the northeast and became the apex predator of the region. to deal with. In the face of competition with more generalist Time period: Albian to Cenomanian of the Cretaceous. Spinosaurus was a giant meat-eating dinosaur that grew to lengths of 18 m (60 ft.). more popular dinosaurs in fiction such as films and games. However comparison of the new Spinosaurus material was a It bites the S. Aegyptiacus in the arm. and hence more In 1915, German paleontologist Ernst Stromer published an article assigning the specimen to a new genus and species, Spinosaurus aegyptiacus. Aptian stage of the Cretaceous. Spinosaurus the first stage of the Late Cretaceous, the Cenomanian. This means described in 1915. The reason for this is that there has been no By studying the buoyancy in lungs of crocodilians and comparing it to the lung placement in Spinosaurus, it was discovered that Spinosaurus could not sink or dive below the water surface. synonymous with However, their attempt was rendered futile when the Spinosaur pulled the cage into the water, nearly drowning the people inside as it became submerged. Spino is pretty light though, even some paleontologists agree with that. Spinosaurus This was supported by elongated vertebrae (bones that make up the spinal column). al also supported [49][62], The possibility of a quadrupedal Spinosaurus was revived by a 2014 paper by Ibrahim and colleagues that described new material of the animal. The year 1915 was the first time German paleontologist Ernst Stromer published an article that assigned that specimen to a newly discovered species and genus called Spinosaurus aegyptiacus. skeletons on display in museums are based upon these other two more was, proving that it was more worthy of reproducing.. Unlike the fence that surrounded the laboratory the doors successfully prevented the Spinosaur from going through them. 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. of Spinosaurus, you first need to look at the [34] In 1988, Gregory S. Paul also listed it as the longest theropod at 15 meters (49ft), but gave a lower mass estimate of 4 metric tons (4.4 short tons). The primary known species is S. aegyptiacus, discovered in Egypt, though a possible second species, S. maroccanus, was found in Morocco. leg proportions. However, both of these are thought to be based The initial remains were destroyed during World War II, but new material came out in the first quarter of the 21st century. Myhrvold & Dawid A. Iurino - 2014. At the time of writing the only two spinosaurid genera Compared to these, Suchomimus had more hollow bones, suggesting it preferred to hunt in shallow water. specialised predator that hunted for fish either from the side of common. Arden and colleagues in 2018 tentatively assigned this specimen to Sigilmassasaurus brevicollis given its size. They specifically wrote: Spinosaurus anatomy exhibits another feature that may have a modern analogy: its long tail resembled that of the thresher shark, employed to slap the water to herd and stun shoals of fish before devouring them (Oliver and colleagues, 2013). [42][43] The neural spines were slightly longer front to back at the base than higher up, and were unlike the thin rods seen in the pelycosaur finbacks Edaphosaurus and Dimetrodon, contrasting also with the thicker spines in the iguanodontian Ouranosaurus. Sigilmassasaurus presumably had shorter legs and stronger hooked forelimbs for snatching any aquatic prey and terrestrial prey available . Spinosaurus was estimated to grow around 15-18 meters long, and weigh around 7 tonnes (7.7 tons) to 23 tons. It swam silently, hidden beneath the deep waters of the river that were rising as the rain from the storm fell, the only indication of its presence being the nativeBonitosswimming away in fear of it. Wanting to get it over with, heslashes the S. Maroccanus in the face. Spinosaurus ("spine lizard") is a genus of large, carnivorous theropod dinosaur known from mid-Cretaceous Africa, with most material referred to the creature having come from Egypt and Morocco. stories not only because it was so different from before but because [36] 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 (4.9ft) in length. - Geology 38 (2): 139142. sun it could possibly warm its blood enough to counter the waters [5] The hip bones of Spinosaurus were reduced, and the legs were very short in proportion to the body. Musum national d'Histoire naturelle. It then charges the larger dinosaur. is speculation that the Baryonyx holotype is of a sparse throughout the rest of the year. Spinosaurus [30][40] The Dal Sasso and colleagues skull length estimate is questioned because skull shapes can vary across spinosaurid species and because MSNM V4047 may not belong to Spinosaurus itself. other large theropod dinosaurs in build. Then in September 2014 a choice but to study only the most partial of remains, a study that -. Smith, M. C. Lamanna, H. Mayr & K. J. Lacovara - 2006. Spinosaurus (meaning 'spine lizard') is a genus of theropod dinosaur that lived in what now is North Africa, during the upper Albian to upper Turonian stages of the Cretaceous period, about 112 to 93.5 million years ago. Dit exemplaar komt uit de Kem Kem afzettingen in Marrokko en was deel van de collectie van een priv verzamelaar. sharp and numerous like they are sometimes seen in crocodiles as well Often called a river king or river dragon, they are worshiped by bullywugs and other primitive humanoids. These estimates suggest that it was around 16 meters (54 feet) in length and up to 9 tons in weight. the dinosaurs sixty-five million years ago, it must have succumbed to composite made up of numerous Spinosaurus They were much larger than the . - Bulletin of Gunma Museum of Natural History 14: 1120. Spinosaurus is the longest known terrestrial carnivore; other large carnivores comparable to Spinosaurus include theropods such as Tyrannosaurus, Giganotosaurus and Carcharodontosaurus. similar to the famous spinosaurids could be Albian stages of North America. This may have been an adaptation to Estimating the size of Spinosaurus The region of Africa Spinosaurus is preserved in dates from 112 to 93.5 million years ago,[68][6][69] although a potential specimen has been found in Campanian deposits. After an influential 1955 skeletal reconstruction by Lapparent and Lavocat[79] based on a 1936 diagram by Stromer,[80] it has been treated as a generalized upright theropod, with a skull similar to that of other large theropods and a sail on its back, even having four-fingered hands. that was very similar to Baryonyx save for tall The reconstruction used in the study was an extrapolation based on different sized individuals, scaled to what were assumed to be the correct proportions. main area of fault was the skull in that due to the lack of good skull Spinosaurus (Spine lizard) Phonetic : Spine-oh-sore-us Named By : Ernst Stromer - 1915 Diet : Piscivore / Carnivore Size : Estimated 12.6 - 18 meters long Type of Dinosaur : Large Theropod Type Species : S. aegyptiacus (type) Found in : North Africa, particularly Egypt - Bahariya Formation, and Morocco - Kem Kem Beds "Was This Dinosaur More Subaquatic Killer or Giant Wading Bird? (2): 8896. the 1970s, the wider public were not introduced to its current 294 sales | 2.82" Spinosaurus maroccanus Tooth $70.00 Only 1 available Add to cart Rare find this item is hard to come by. from Morocco. There is only one individual known to have lived on the island. that was being possible. For the time being at least, Spinosaurus comparatively easy one [61] Because of the mass of the hypothesized fatty dorsal humps of Spinosaurus, Bailey (1997) was open to the possibility of a quadrupedal posture,[42] leading to new restorations of it as such. The submerged dorsal sail would have provided a strong centreboard-like counterforce for powerful sidewards movements of the strong neck and long tail, as performed by sailfish (Domenici and colleagues, 2014) or thresher sharks (Oliver and colleagues, 2013). Their subfamily was defined by Holtz and colleagues in 2004, as the complementary clade of all taxa closer to Baryonyx walkeri than to Spinosaurus aegyptiacus. Examinations by Marcos Sales, Cesar Schultz, and colleagues (2017) indicate that the South American spinosaurids Angaturama, Irritator, and Oxalaia were intermediate between Baronychinae and Spinosaurinae based on their craniodental features and cladistic analysis. Spinosaurus is a giant theropod dinosaur that lived in what is now North Africa, about 95 million years ago (Cretaceous period).. - Nature 430 (6995): 33. Dr.Alan Grantand his team fled from the wreckage theSpinosauruswas scavenging, hoping it would lose sight of them. [74] This situation resembles that in the Late Jurassic Morrison Formation of North America, which boasts up to five theropod genera over 1 metric ton (1.1 short tons) in weight, as well as several smaller genera (Henderson, 1998; Holtz and colleagues, 2004). Spinosaurus had long phalanges (finger bones), and only somewhat recurved claws, suggesting that its hands were longer compared to those of other spinosaurids. something that is quite surprising when you think that it was first In The modern spinosaurid genus Sigilmassasaurus is also being compared by certain researchers with S. Aegyptiacus. Eric Kirby, who had just met Alan Grant, a man hired by the boy's family as a navigate the island in the search to rescue him, heard this ringing of his father's satellite phone and assumed his family was in the area. hunted land that Spinosaurus would have had many millions of 3. [42] In support of his "buffalo-back" hypothesis, Bailey argued that in Spinosaurus, Ouranosaurus, and other dinosaurs with long neural spines, the spines were relatively shorter and thicker than the spines of pelycosaurs (which were known to have sails); instead, the dinosaurs' neural spines were similar to the neural spines of extinct hump-backed mammals such as Megacerops and Bison latifrons. history tells us, that so far has been exceedingly frustrating to to not only know Two species of Spinosaurus have been named: Spinosaurus aegyptiacus (meaning "Egyptian spine lizard") and Spinosaurus maroccanus (meaning "Moroccan spine lizard") Therefore, though some have retained the species as valid without much comment, most researchers regard S. maroccanus as a nomen dubium or as a junior synonym of S. aegyptiacus. Spinosaurus aegyptiacus Egyptian spine lizard) and Spinosaurus maroccanus (Moroccan spine lizard). spinosaurids that were the climate as Suchomimus which is also from North environments for long periods. and only but much older Dimetrodon. [4], Although traditionally depicted in the scientific community as a biped, Spinosaurus was often depicted in the mid-20th century as an obligate quadruped akin to Dimetrodon. [6] In 2003, Oliver Rauhut suggested that Stromer's Spinosaurus holotype was a chimera, composed of vertebrae and neural spines from a carcharodontosaurid similar to Acrocanthosaurus and a dentary from Baryonyx or Suchomimus. It is unclear whether one or two species are represented in the described fossils. the precedent of leg length proportions reducing with age in large There were six or seven teeth on each side of the very front of the upper jaw, in the premaxillae, and another twelve in both maxillae behind them. I went by hieght and length for size. [54][55], Recent studies of the tail vertebrae of Spinosaurus refute Henderson's proposal that Spinosaurus mainly inhabited areas of land near and in shallow water and was too buoyant to submerge. It was recently argued that Spinosaurus was largely a pursuit predator of aquatic prey, using its large tail to swim and actively pursue fish in the . The estimates published in the years 2005 and 2007 and 2008 indicated that the species was 12.6 up to 18 metres (41 to 59 feet) in length. [51] A 2013 study by Andrew R. Cuff and Emily J. Rayfield concluded that bio-mechanical data suggests that Spinosaurus was not an obligate piscivore and that its diet was more closely associated with each individual's size. [20], From the caudal vertebrae of the tail projected significantly elongated, thin neural spines, akin to the condition observed in some other spinosaurids,[18] though to a more extreme degree. Uninterested, the dinosaur soon left. de; and Lavocat, R. (1955). cooling effect. However this would not explain why others like Large animals, due to the relatively small ratio of surface area of their body compared to the overall volume (Haldane's principle), face far greater problems of dissipating excess heat at higher temperatures than gaining it at lower. the curvature of the snout notch. Oxygen isotope analysis of [32] Both Friedrich von Huene in 1926[33] and Donald F. Glut in 1982 listed it as among the most massive theropods in their surveys, at 15 meters (49ft) in length and upwards of 6 metric tons (6.6 short tons) in weight. - Oxygen isotope evidence for semi-aquatic habits among spinosaurid Lcuyer, X. Wang, L. Boudad, Z. Ding, F. Fourel, S. Hutt, F. Martineau, The name (pronounced spine -oh- sore -us) comes from a . the best indication of lifestyle for any predator. Usually theropods was eventually driven to extinction., Sail or hump, and more Two species of Spinosaurus have been named: Spinosaurus aegyptiacus and Spinosaurus maroccanus.The first described fossils of Spinosaurus were discovered and characterized in the early 20th century. stuck out by themselves but the majority of palaeontologists consider The recent description of additional material of the spinosaurid Sigilmassasaurus brevicollis from the Kem Kem beds by Evers et al. Unbelievable Shin-Gojira Godzilla: Resurgence Trailer Released! but smaller growth on its back where as Baryonyx noted as having a reduced size, meaning less attachment space for It is not clear if the species of interest are included by the fossils described in the scientific journal. from the skull and sail/hump on the back, was roughly similar to This assumption might suggest that its trademark sail is something that develops as it matures. It is also possible that the structure was used to radiate excess heat from the body, rather than to collect it. Tail reconstruction Two Spinosaurus species have been identified the Spinosaurus aegyptiacus (meaning Egyptian spine lizard) and the Spinosaurus controversial maroccanus (meaning Moroccan spine lizard). is now often regarded as the biggest known meat eating theropod Russell stated that "only general locality information could be provided" for the specimen, and therefore it could be dated only "possibly" to the Albian. belonged to was more likely to pass on its genes to the next generation were angled to Spinosaurus While smaller dorsal sails or fins make the dorsal water volume better accessible for slashing, it can be speculated that their smaller stabilization effect makes lateral slashing less efficient (e.g. specialisation hypothesis. Described by Taquet and Russell in 1998, the specimen is 13.4to 13.6 centimeters (5.35.4in) in width; no length was stated. missing several other pieces, but other spinosaurid dinosaurs were revealed the motions of passing fish that created pressure waves as [4], Its skull had a narrow snout filled with straight conical teeth that lacked serrations. and Oxalaia [35], In 2009, Dal Sasso and colleagues. Nature. - Nizar Ibrahim, Simone Maganuco, Cristiano Dal Henderson therefore theorized that Spinosaurus probably did not hunt completely submerged in water as previously hypothesized, but instead would have spent much of its time on land or in shallow water. slightly later in the He turns around and bites his smaller cousin in the neck. 1990s, I could not have been more thrilled with this Triceratops tooth! After a couple seconds, the S. Maroccanus finds itself on the ground, staring at the Spinosaurus Aegyptiacus' hungry jaws. - C. Dal Sasso, S. would have not needed a keen sense of smell anyway. Because the teeth Palaeontology. Journal of Paleontology 71 (6): 11241146. of Spinosaurus. This could in part also connect with a smaller estimate of just over twelve and a half meters, Spinosauridae. Two species of Spinosaurus are currently known: Spinosaurus aegyptiacus and Spinosaurus marocannus (for more information see Spinosaurus Classification ). Some authors note that the length of the vertebrae can vary from individual to individual, that the holotype specimen was destroyed and thus cannot be compared directly with the S. maroccanus specimen, and that it is unknown which cervical vertebrae the S. maroccanus specimens represent. quadrupedal dinosaur.. Theropoda). - PeerJ. 6: e5409. - D. M. Henderson have to be so different, not just from other theropods, but the Most of the species of spinosaurus were differentiated using their . The further supporting the fish this species relied upon a prevailing wind to cool its blood so that it did not to increase grip upon smaller prey, particularly slippery prey such - A buoyancy, balance and stability challenge to the hypothesis of [61], In addition to films, action figures, video games, and books, Spinosaurus has been depicted on postage stamps from countries such as Angola, The Gambia, and Tanzania. skull elements, not Evidence suggests that it was highly semiaquatic, and lived both on land and in water much like modern crocodilians do. metabolism. As a very large dinosaur Spinosaurus [30], Material possibly belonging to Spinosaurus has been reported from the Turkana Grits of Kenya. As soon as theSpinosaurusand theTyrannosaurus rexsaw each other aconflict ensured. spinosaurus is now often regarded as the biggest known meat eating theropod dinosaur (herbivores like large sauropods were of course bigger), however the actual size is really just an estimate extrapolated from an educated guess. The Spinosaurus would Max out at 54 feet as it would be too large for its bones to support the animal, the Spinosaurus would grow up to 49 or 50 feet at max ( MSNM-V077) there are many older estimates saying that the spinosaurs grew up to 60 feetnbut those estimates are outdated this is inaccurate, Continue Reading 11 Sponsored by TruthFinder - Fine sculptures on a tooth of Spinosaurus (Dinosauria, Theropoda) new material combined It is the holotype of Spinosaurus maroccanus, as described by Russell in 1996. It is the holotype of Spinosaurus maroccanus as described by Russell in 1996. Spinosaurus is the biggest of all terrestrial carnivores. The largest specimen found is 12.3 meters long and 4 meters tall at the hips. Buffetaut - 1989. tooth stuck into it, and recovery of the related Baryonyx In 1912, Richard Markgraf discovered a partial skeleton of a giant theropod dinosaur in the Bahariya Formation of western Egypt. which housed the first Spinosaurus remains was The study found that Spinosaurus teeth from five of six sampled localities had oxygen isotope ratios closer to those of turtles and crocodilians when compared with other theropod teeth from the same localities. It approaches a lake, and there it sees it's larger cousin, Spinosaurus Aegyptiacus. - Y. Hasegawa, G. Tanaka, Y. Takakuwa & S. Koike - 2010. other spinosaurids where the vertebrae are known to have much smaller many have questioned the accuracy of the Ibrahim et al reconstruction. It is unclear whether one or two species are represented in the fossils reported in the scientific literature. Diet: Carnivore/Piscivore. Spinosaurus maroccanus was erected on the basis of a mid-cervical vertebra. Size: Estimates highly variable amongst sources and range The Spinosaur gave out a loud roar that shook the plane violently until it fell out of the tree and onto the ground below. New MonsterVerse Series Pitch From O'Shea Jackson Jr. And Toho Kingdom! "[76] He has since retracted the statement about T. rex being a scavenger. anywhere between 12.6 and 18 meters total body length. The largerspinosaur reacts quickly, slashing the S. Maroccanus' sail. - Bahariya Formation, and Morocco - Kem Kem Beds. that its own body insulates its internal parts from the outside cold. According to the latest estimates, it could have that the weight ranges from 6.4 to 7.5 tonnes (7.1 8.3 to 8.3 shorter tons). so that it could become more active. Also if too warm it may have tail into a broad paddle shape. Furthermore, the tail of attempted hunting. Baryonyx also revealed the [42], The structure may also have been more hump-like than sail-like, as noted by Stromer in 1915 ("one might rather think of the existence of a large hump of fat [German: Fettbuckel], to which the [neural spines] gave internal support")[8] and by Jack Bowman Bailey in 1997. sides of the premaxilla notch and point towards the rounded tip of the larger and more fearsome when viewed from one angle and can be very thin in their actual build.. material to be compared to two other dinosaurs that were discovered The A possible junior synonym could be Oxalaia of the Alcantara Formation in Brazil. These include: having two head crests instead of one, stronger jaws, immense strength, thicker hide, and longer legs, making it taller and giving it a more terrestrial lifestyle. Spinosaurus. Spinosaurus was the biggest of all the carnivorous dinosaurs, larger than Tyrannosaurus and Giganotosaurus. Shin Japan Heroes Universe Project Announced. "[4] They argued that the 2D graphical reconstruction of the aquatic hypothesis by Ibrahim et al. Gimsa and colleagues (2015) suggest that the dorsal sail of Spinosaurus was analogous to the dorsal fins of sailfish and served a hydrodynamic purpose. support the weight of the body. Also, the researchers plotted the S. maroccanus has been first named in the works of Dale Russell in 1996 as the first species to be described founded on their neck vertebraes length. The active in North Africa around the same time as Spinosaurus. Discovery & [66] In their 2015 re-description of Sigilmassasaurus, Evers and colleagues argued that Sigilmassasaurus was in fact a distinct genus from Spinosaurus, and therefore doubted whether the material assigned to Spinosaurus by Ibrahim et al. the 1990s to 2014, Spinosaurus was commonly guess. What is clear is that Spinosaurus was a these dinosaurs all sit within their own group and since Spinosaurus world of prehistory is constantly changing with the advent of new (belonging to the tribe Spinosaurini but we don't know the exact species) though it probably belong to either Spinosaurus aegyptiacus or Sigilmassasaurus brevicollis. [49] Large fish are known from the faunas containing other spinosaurids, including the Mawsonia, in the mid-Cretaceous of northern Africa and Brazil. along with great fanfare by National Geographic including a full size it can actually swim under the surface is necessary. Ibrahim et al the same rate as the rest of the body is actually very common, and carnosaur skull that juvenile dinosaur). TheSpinosauruswas quick to follow and began to chase them through the jungle, but a patch of trees blocked it from continuing its pursuit. remains of the fish Lepidotes, possibility also remains that Spinosaurus may have TheSpinosaurusbit down on theTyrannosaurus'neck, proceeded to grab it with its arms and snapped it, killing theTyrannosaurus rex. A [7], MNHN SAM 124, housed at the Musum National d'Histoire Naturelle, is a snout (consisting of partial premaxillae, partial maxillae, vomers, and a dentary fragment). 705. [20], Spinosaurus had a significantly smaller pelvis (hip bone) than that of other giant theropods, with the surface area of the ilium (main body of the pelvis) half that of most members of the clade. form until the release of the 2001 film Jurassic Park III. It is the holotype of Spinosaurus maroccanus, as described by Russell in 1996. in 1986, and this was a The key problem that most people have is that this reconstruction is a from Baryonyx and Suchomimus, small number of ribs, gastralia (belly ribs), vertebrae, destroyed by a bombing The - Cretaceous Research. Synonyms: Sigilmassasaurus? Baryonyx), which seem to be closer to other more Classification: Chordata, Reptilia, Dinosauria, It would have had large, robust forelimbs bearing three-fingered hands, with an enlarged claw on the first digit. smell the meat that they are eating. The fact that the nostrils are Ghostbusters 2016 misandric hate campaign continues! theropods, and by extension meaning that Spinosaurus But the most vital that was damaged was the fuel tank that was leaking rapidly. It consists of a partial anterior dentary 11.5 centimeters (4.5in) in length from an early Albian stratum of the Chenini Formation of Tunisia. Spinosaurus has long been depicted in popular books about dinosaurs, although only recently has there been enough information about spinosaurids for an accurate depiction. [35], In 2005, Dal Sasso and colleagues assumed that Spinosaurus and the spinosaurid Suchomimus had the same body proportions in relation to their skull lengths, and thereby calculated that Spinosaurus was 16 to 18 meters (52 to 59ft) in length and 7 to 9 metric tons (7.7 to 9.9 short tons) in weight. lower jaw. The teeth on this rounded lower jaw tip point upwards into notably from the vast reduction in size to what they have been used to as even though the snout material was incomplete, it was so similar Sadly, theSpinosaurusquickly emerges to the right of the wounded mercenary and proceeds to devour him right when the plane goes airborne. Good fight, I was rooting for Aegyptiacus, and I see you were talking length when you said in your previous fight that the two largest predators were coming, because the Rex is 8 tons as you said, and the Spino A is 7 tons. holotype specimens. crocodile. The tip of the snout has a recessed dip in the premaxilla The 3 days ago. [citations needed], It is unclear whether Spinosaurus was primarily a terrestrial predator or a piscivore, as indicated by its elongated jaws, conical teeth and raised nostrils. 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).
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