Plus little miss would like to point out that TRex only has two fingers! Edit. [29] Although these results were much higher than previous estimations, the authors noted that these results significantly lowered the great difference between its actual growth rate and the one which would be expected of an animal of its size. [56] A 2017 analytical study proposed that tyrannosaurids had large, flat scales on their snouts instead of lips. [50] The neck of T. rex formed a natural S-shaped curve like that of other theropods. [38] Since then, several paleontologists have sought to determine the ability of Tyrannosaurus to regulate its body temperature. Julia Donaldson is undoubtedly one of my favorite authors, and in this highly entertaining dino-spin on the "ugly duckling" tale, a water-dwelling, vegetarian duckbill dinosaur gets a chance to find out where he truly belongs when he stands up against T-Rex bullies. [208][220] Other tyrannosaurids may also have practiced cannibalism.[208]. Obviously the T-Rex eat meat (more specifically in this case the duck-billed dinosaurs) while the other group were herbivores. It was funny when Drip refused to eat meat., Josiah: I like the book when the small dinosaur stole the egg and brang it to the Tyrannosaurus and then it hatched. But don't be fooled. Interested in flipbooks about PDF download Tyrannosaurus Drip? The little guy loved it. The rear ischium was slender and straight, pointing obliquely to behind and below. [122], Another possibility is that the forelimbs held struggling prey while it was killed by the tyrannosaur's enormous jaws. [44][45][164], Thomas Holtz Jr. would note that high depth perception of Tyrannosaurus may have been due to the prey it had to hunt, noting that it had to hunt horned dinosaurs such as Triceratops, armored dinosaurs such as Ankylosaurus, and the duck-billed dinosaurs and their possibly complex social behaviors. Shipping cost, delivery date, and order total (including tax) shown at checkout. How did this mountain lion reach an uninhabited island? Although T. rex is a household name, what we know about this tyrannosaur is constantly evolving. [125][190][191] He has put forward arguments in the popular literature to support the pure scavenger hypothesis: Other evidence suggests hunting behavior in Tyrannosaurus. [5], Beginning in the 1960s, there was renewed interest in Tyrannosaurus, resulting in the recovery of 42 skeletons (580% complete by bone count) from Western North America. When a duckbill egg hatches in the T's nest, both the new baby and the T-Rex family must try very hard to get along. The debate originated in a 1917 study by Lambe which argued that large theropods were pure scavengers because Gorgosaurus teeth showed hardly any wear. [120][116] The latter known as Newman's pushup theory has been debated. Tyrannosaurus Drip is a fantastic rhyming adventure story from Julia Donaldson, bestselling author of The Gruffalo, with wonderfully funny illustrations from award-winning illustrator David Roberts. Tyrannosaurus drip by Julia Donaldson and David Roberts - Animated children's book (Eng) Anders Andersson 93K views 7 years ago Crunch Munch Dinosaur Lunch! Many Julia Donaldson books in my little grandson's library. For example, the observed sharp margins with little reactive bone shown by the radiographs of Trichomonas-infected birds are dissimilar to the reactive bone seen in the affected T. rex specimens. "Forget all you know from Jurassic Park: For speed, "A Computational Analysis of Limb and Body Dimensions in Tyrannosaurus rex with Implications for Locomotion, Ontogeny, and Growth", "Dinosaurs: The Most Complete, Up-to-Date Encyclopedia for Dinosaur Lovers of All Ages, Winter 2011 Appendix", "An Older and Exceptionally Large Adult Specimen of, "Estimating the masses and centers of mass of extinct animals by 3-D mathematical slicing", "Gigantism and comparative life-history parameters of tyrannosaurid dinosaurs", "Body mass, bone 'strength indicator', and cursorial potential of, "A new method to calculate allometric lengthmass relationships of dinosaurs", 10.1671/0272-4634(2001)021[0051:ANMTCA]2.0.CO;2, 10.1671/0272-4634(2006)26[321:BVITD]2.0.CO;2, "Fused and vaulted nasals of tyrannosaurid dinosaurs: Implications for cranial strength and feeding mechanics", 10.1671/0272-4634(2005)025[0865:HITRIF]2.0.CO;2, "A new tyrannosaur with evidence for anagenesis and crocodile-like facial sensory system", "Dental anatomy and skull length to tooth size ratios support the hypothesis that theropod dinosaurs had lips", "Tyrant Dinosaur Evolution Tracks the Rise and Fall of Late Cretaceous Oceans", "Newfound "King of Gore" Dinosaur Ruled Before T. Rex", "The Tyrant Lizard King, Queen and Emperor: Multiple Lines of Morphological and Stratigraphic Evidence Support Subtle Evolution and Probable Speciation Within the North American Genus Tyrannosaurus", "They Want to Break T. Rex Into 3 Species. Tyrannosaurus Drip. Tyrannosaurus rex, whose name means king of the tyrant lizards, was built to rule. The abundance of fossil material has allowed significant research into many aspects of its biology, including its life history and biomechanics. Tyrannosaurus[nb 1] is a genus of large theropod dinosaur. This small temperature range between the body core and the extremities was claimed by paleontologist Reese Barrick and geochemist William Showers to indicate that T. rex maintained a constant internal body temperature (homeothermy) and that it enjoyed a metabolism somewhere between ectothermic reptiles and endothermic mammals. the medium ones in another and the large ones in another. as his sisters (he actually called them sisters) see their evil reflection, they get scared. Follow authors to get new release updates, plus improved recommendations. I read the book with vigour. It was an instant sensation and every family wanted a copy to own. Brief content visible, double tap to read full content. [211][212][213][214][215], In 2001, Bruce Rothschild and others published a study examining evidence for stress fractures and tendon avulsions in theropod dinosaurs and the implications for their behavior. Text discussions, dynamic activities, and valuable appendices provide a variety of effective. Evidence of gregariousness in T. bataar itself has not been peer-reviewed, and to Currie's own admission, can only be interpreted with reference to evidence in other closely related species. [50] T. rex arms are very small relative to overall body size, measuring only 1 meter (3.3ft) long, and some scholars have labelled them as vestigial. This cataclysm occurred when an asteroid or comet the size of a mountain slammed into Earth, wiping out Tyrannosaurus rex along with the rest of the non-avian dinosaurs and bringing a sudden end to the Cretaceous period. Yes the illustrations are lovely and very colourful, but the story and the My daughter likes this author and dinosaurs so thought Id buy this for her. totally not what I was expecting and whilst reading it I was thinking how are most of the reviews really positive?! In January 2020, a study of the fossils of Nanotyrannusa smaller tyrannosaur that was believed to have lived alongside T. rexrevealed that the bones were more likely from a juvenile T. rex than another species. Tyrannosaurus Drip is a fantastic rhyming adventure story from Julia Donaldson, bestselling author of The Gruffalo, with wonderfully funny illustrations from award-winning illustrator David Roberts. Children will enjoy the repetitive lilt, and adults will appreciate how naturally it reads. Specifically, the paper's T. rex was distinguished by robust anatomy, a moderate ratio of femur length vs circumference, and the possession of a singular slender incisiform dentary tooth; T. imperator was considered to be robust with a small femur length to circumference ratio and two of the slender teeth; and T. regina was a gracile form with a high femur ratio and one of the slender teeth. Previous studies have suggested that it went through a growth spurt in its teenage years, but until recently, scientists didnt know much about how it grew from a hatchling to a powerful predator. The fact that the damage seems to have healed suggests that the Edmontosaurus survived a tyrannosaur's attack on a living target, i.e. The T-Rexs proceed to calling him a drip for not eating meat and going hunting. A duckbill dinosaur egg is mistakenly hatched by a fierce, war-loving Tyrannosaurus family. [78] However, In 1999, a detailed analysis by Thomas Carr revealed the specimen to be a juvenile, leading Carr and many other paleontologists to consider it a juvenile T. rex individual. [171] A find in South Dakota where three T. rex skeletons were in close proximity may suggest the formation of a pack. [216], A 2009 study showed that smooth-edged holes in the skulls of several specimens might have been caused by Trichomonas-like parasites that commonly infect birds. [50] The vertebral bodies of the torso were robust but with a narrow waist. I would definitely recommend this book for KS1. The footprint was published as the ichnogenus Tyrannosauripus pillmorei in 1994, by Martin Lockley and Adrian Hunt. While walking, animals reduce their energy expenditure by choosing certain step rhythms at which their body parts resonate. [86], In 2016, analysis of limb proportions by Persons and Currie suggested Nanotyrannus specimens to have differing cursoriality levels, potentially separating it from T. Copyright 1996-2015 National Geographic SocietyCopyright 2015-2023 National Geographic Partners, LLC. Some of this tissue has been identified as a medullary tissue, a specialized tissue grown only in modern birds as a source of calcium for the production of eggshell during ovulation. Expressive characters enhance the humor, and the limited palette helps emphasize just how different the creatures' worlds are. This roar-tastic book all about celebrating difference is sure to become a firm favourite with young dinosaur fans. Behind the tooth row, the lower jaw became notably taller. [113], Like many bipedal dinosaurs, T. rex was historically depicted as a 'living tripod', with the body at 45 degrees or less from the vertical and the tail dragging along the ground, similar to a kangaroo. Finally, they remark that they did estimate the range of reasonable survivorship curves and that they did include uncertainty in the time of onset of sexual maturity and in the growth curve by incorporating the An enjoyable group read-aloud.Kim T. Ha, Elkridge Branch Library, MD Copyright Reed Business Information, a division of Reed Elsevier Inc. All rights reserved. I know this isnt a Julia Donaldson / Axel Scheffler collaboration like all of our favourites, but I still thought it would My son and I are huge Julia Donaldson fans and love all of her classics as well as the books we watch the films, have the merchandise and everything. The appeal of a series! Just as Drip discovers his true family, lightning strikes and, lo and behold, a tree bridge forms across the river. [145] Schweitzer has strongly criticized Kaye's claims and argues that there is no reported evidence that biofilms can produce branching, hollow tubes like those noted in her study. The T's are scary meat-eaters. But for theropods weighing over 1,000kg (2,200lb), top running speed is limited by body size, so longer legs instead were found to have correlated with low-energy walking. I was hoping for one ending, but I got a totally weird and not even close to what I wanted ending. When they gave him chicken, he said,No I am a plant eater!, Your email address will not be published. Julia Donaldson X 10 Book Set Collection Pack Includes Room On The Broom. The holotype of the former (T. imperator) is the Sue specimen, and the holotype of the latter (T. regina) is Wankel rex. The sense of smell in tyrannosaurs may have been comparable to modern vultures, which use scent to track carcasses for scavenging. Especially the younger dinosaur lover. In the foot, the metatarsus was "arctometatarsalian", meaning that the part of the third metatarsal near the ankle was pinched. Two, he seems to look a lot like these lovely creatures who celebrate weed eating over meat eating. The track was made in what was once a vegetated wetland mudflat. The characters form 'goodies' and 'baddies' with the grisly and beasty Tyrannosaurus Rex's and the less ferocious, plant-eating Duckbill dinosaurs. The illustrations are fun and the rhyme scheme is engaging. [196][197], A skeleton of the hadrosaurid Edmontosaurus annectens has been described from Montana with healed tyrannosaur-inflicted damage on its tail vertebrae. He pointed out that the criticism of the study naming T. imperator and T. regina only focused on two of the features used to distinguish the two new species (the number of small incisiform teeth and femur robustness), while the original study also compared the robustness of other bones as well (the maxilla, dentary, humerus, ilium and metatarsals). Larson P (2013), "The validity of Nanotyrannus Lancensis (Theropoda, Lancian Upper Maastrichtian of North America)", Society of Vertebrate Paleontology: 73rd annual meeting, Stevens K.A., Larson P, Willis E.D. Great bool to use in a year 1 English lesson- great image to use to help order a story from memory. [170], Philip J. Currie suggested that Tyrannosaurus may have been pack hunters, comparing T. rex to related species Tarbosaurus bataar and Albertosaurus sarcophagus, citing fossil evidence that may indicate gregarious (describing animals that travel in herds or packs) behavior. This resource is 6 worksheets to be used with the book Tyrannosaurus Drip by Julia Donaldson. He lives in central London. All rights reserved. The duckbill dinosaurs live across the river from the T-Rex's. If your little one loves this fantastic rhyming adventure story, or just can't get enough of dinosaurs, they'll have fun with these Tyrannosaurus Drip kids activity sheets perfect for 4-6 year olds. . Interesting story to use in a class. How could this be written by the same person who crafted timeless, entertaining gems like The Gruffalo and The Whale With The Snail On Its Tail? Everyone knows that tyrannosauruses are . It's another gem from Julia Donaldson with funny illustrations and wonderful fun rhymes that flow so beautifully and easily no matter how tired you are reading it to your child at bedtime! Since the series began, it included Robin, Kid Flash, Red Arrow, Crush, It is possible that T. zhuchengensis is synonymous with Zhuchengtyrannus. [29][40][41][42][43], The largest known T. rex skulls measure up to 1.52 meters (5ft) in length. [16], In the summer of 2000, crews organized by Jack Horner discovered five Tyrannosaurus skeletons near the Fort Peck Reservoir. but this one was a flop. But this book was found at the perfect time as my son is all about dinosaurs right now. Vocabulary Ninja - Andrew Jennings 2019-04-18 The illustrations by David Roberts are really interesting and different from many others of Donaldsons books, and as such would be really interesting to explore as a class. Since the first, two more tyrannosaurs and a hadrosaur have also been found to have such tissue-like structures. About the author (2007) Julia Donaldson is the outrageously talented, prize-winning author of the world's best-loved picture books, and was the 2011-2013 UK Children's Laureate. [112] A full-sized chevron was discovered on the first tail vertebra of Sue, an extremely robust individual, indicating that this feature could not be used to differentiate the two morphs anyway. This also confirmed the identity of the specimen as a female. The upper arm bone, the humerus, was short but robust. Unauthorized use is prohibited. [156][157] Another 2017 study hypothesized that an adult Tyrannosaurus was incapable of running due to high skeletal loads. Some believe the animals arms were an evolutionary leftoverlike the pelvic bones of a snakeor served non-predatory purposes like helping it grip a mate. Until these finds, most scientists presumed that fossilization replaced all living tissue with inert minerals. [17] In 2001, a 50% complete skeleton of a juvenile Tyrannosaurus was discovered in the Hell Creek Formation by a crew from the Burpee Museum of Natural History. You are purchasing a Good copy of 'Tyrannosaurus Drip'. When my grandson got to be 4, I bought him a copy, too. Kindergarten-Grade 3In this prehistoric setting, waterweed-eating duckbill dinosaurs live on one side of a river, and a "mean Tyrannosaurus with his grim and grisly bride" live on the other. [55][56][57], The vertebral column of Tyrannosaurus consisted of ten neck vertebrae, thirteen back vertebrae and five sacral vertebrae. First read through I wasn't a big fan but now I'm liking it far more. One study suggests that the rarity of juvenile T. rex fossils is due in part to low juvenile mortality rates; the animals were not dying in large numbers at these ages, and thus were not often fossilized. This little dinosaur is in the wrong nest . But the little dinosaur, nicknamed Drip by his new family, soon proves he's not such a drip after allin fact, he's a real hero! Tyrannosaurus itself has strong evidence pointing towards it having been cannibalistic in at least a scavenging capacity based on tooth marks on the foot bones, humerus, and metatarsals of one specimen. Taunting and name-calling go all the way back to the Cretaceous period . While predominantly being a book for pure entertainment, this book also has the underlying themes of bullying, acceptance and prejudice. It leaves me wondering whether, if Julia Donaldson published her grocery list, people might be inclined to give it 5 stars. for rhyming purposes she could have done more i feel like that would fit better. In any case, T. zhuchengensis is considered to be a nomen dubium as the holotype lacks diagnostic features below the level Tyrannosaurinae. A preserved Tyrannosaurus rex skull on display at Berlin's Natural History Museum. The head of a T. rex was the real stuff of nightmares. Previously, these holes had been explained by the bacterious bone infection Actinomycosis or by intraspecific attacks. Although Tyrannosaurus Drip is another good work by Julia Donaldson I found that it didn't quite reach the same level as some of her other picture books. * Differentiation advice and assessment guidance. I love this book. If true, the evidence indicates the range of Tyrannosaurus was possibly more extensive than previously believed. instead of singing "Up with hunting! The number of tail vertebrae is unknown and could well have varied between individuals but probably numbered at least forty. The researchers found tendon avulsions only among Tyrannosaurus and Allosaurus. animals eat what they eat, they arent good or bad because of it but i brushed this off as they could look villainous to the dinos they eat, sure. tyrannosaurus drip is a duckbill dinosaur but ends up hatching in a tyrannosaurus rex nest he finds he d sbc summer text this is a brilliant story emphasising that just because you are born into a particular society does not mean you will fit in there It's another gem from Julia Donaldson with funny illustrations and wonderful fun My 4 year old son got this 'from Santa' as he's crazy about dinosaurs. [208] Tooth marks in the humerus, foot bones and metatarsals, may indicate opportunistic scavenging, rather than wounds caused by combat with another T. It lived throughout what is now western North America, on what was then an island continent known as Laramidia. This book is so fun and the rhymes are really cute and funny. It is a digital copy in PDF format. [149] Holtz noted that tyrannosaurids and some closely related groups had significantly longer distal hindlimb components (shin plus foot plus toes) relative to the femur length than most other theropods, and that tyrannosaurids and their close relatives had a tightly interlocked metatarsus (foot bones). Tyrannosaurus Drip.Enjoy the other stories by Julia Donaldson and David Roberts: Tyrannosaurus Drip, Jack and the Flumum Tree, The Flying Bath and The Cook and the King. The Teen Titans have been around in one form or another since the team first debuted in 1964's The Brave and the Bold #54. In a fight, they proposed it would be difficult to reach down to bite in the feet of a rival, making it more likely that the bitemarks were made in a carcass. Tyrannosaurus Drip is brave, and very clever! Help others learn more about this product by uploading a video! Julia Donaldson creates a funny and engaging rhyming book by developing interesting characters set in the age of the dinosaurs. [59] The discovery of the tyrannosaurid Lythronax further indicates that Tarbosaurus and Tyrannosaurus are closely related, forming a clade with fellow Asian tyrannosaurid Zhuchengtyrannus, with Lythronax being their sister taxon. These animals can sniff it out. The idea of dinosaur ectothermy was challenged by scientists like Robert T. Bakker and John Ostrom in the early years of the "Dinosaur Renaissance", beginning in the late 1960s. Tyrannosaurus Drip - Sara Stanley 2009-12-23 A new title from the best-selling _Read & Respond_ series. Compared to more basal groups of theropods in the study, tyrannosaurs like Tyrannosaurus itself showed a marked increase in foraging efficiency due to reduced energy expenditures during hunting or scavenging. Give Us A Story!. "[38], "T. rex" redirects here. It is a perfect book for children who love dinosaurs and rhyming books. rex. I always feel like it doesn't send a realistic or very positive message. This roar-tastic book all about celebrating difference is sure to become a firm favourite with young dinosaur fans. Labels for carnivore, herbivore and omnivore. This study also indicates that in such changing environments, Tyrannosaurus was particularly well-suited to an environment that shifted yearly in regards to resource abundance, hinting that other midsize predators might have had difficulty surviving in such harsh conditions and explaining the niche partitioning between juvenile and adult tyrannosaurs. Over the span of the genus' existence, it is estimated that there were about 127,000 generations and that this added up to a total of roughly 2.5 billion animals until their extinction. [182] A study in 2012 by Karl Bates and Peter Falkingham found that Tyrannosaurus had the most powerful bite of any terrestrial animal that has ever lived, finding an adult Tyrannosaurus could have exerted 35,000 to 57,000 N (7,868 to 12,814 lbf) of force in the back teeth. 2nd - 3rd grade. [223] The region is thought to have been dominated by semi-arid inland plains, following the probable retreat of the Western Interior Seaway as global sea levels fell. the illustrations by David Roberts match the spirit of the text . What happens is unexpected, funny, and told in great rhyme and illustrations. The discovery of proteins from a creature tens of millions of years old, along with similar traces the team found in a mastodon bone at least 160,000 years old, upends the conventional view of fossils and may shift paleontologists' focus from bone hunting to biochemistry. Such a talented writer. The study, published by Kawabe and Hittori et al., suggests that Tyrannosaurus could also accurately sense slight differences in material and movement, allowing it to utilize different feeding strategies on different parts of its prey's carcasses depending on the situation. When T. rex was first discovered, the humerus was the only element of the forelimb known. [94], A study by Hutchinson and colleagues in 2011 corroborated the previous estimation methods in general, but their estimation of peak growth rates is significantly higher; it found that the "maximum growth rates for T. rex during the exponential stage are 1790kg/year". This has been interpreted as a bayou environment similar to today's Gulf Coast. [160] Another ichnofossil described in 2018, perhaps belonging to a juvenile Tyrannosaurus or the dubious genus Nanotyrannus was uncovered in the Lance Formation of Wyoming. This book is growing on us. Rhyming text, dinosaurs, lots of humour. The specimen Sue, named after the discoverer, was the object of a legal battle over its ownership. He discovers some amazing things. It lived throughout what is now western North America, on what was then an island continent known as Laramidia. Holtz remarked that, even if Tyrannosaurus imperator represented a distinct species from Tyrannosaurus rex, it may represent the same species as Nanotyrannus lancensis and would need to be called Tyrannosaurus lancensis. [79][80], In 2001, a more complete juvenile tyrannosaur (nicknamed "Jane", catalog number BMRP 2002.4.1), belonging to the same species as the original Nanotyrannus specimen, was uncovered. [60] Tyrannosaurids were once commonly thought to be descendants of earlier large theropods such as megalosaurs and carnosaurs, although more recently they were reclassified with the generally smaller coelurosaurs. [19] In 2002, a skeleton named Wyrex, discovered by amateur collectors Dan Wells and Don Wyrick, had 114 bones and was 38% complete. Specimens of Tyrannosaurus rex include some that are nearly complete skeletons. [101] Gregory S. Paul also writes that Tyrannosaurus reproduced quickly and died young, but attributes their short life spans to the dangerous lives they lived. [64] By 1965, this species was renamed as a distinct genus, Tarbosaurus bataar. rex. [217] A subsequent study found that while trichomoniasis has many attributes of the model proposed (osteolytic, intra oral) several features make the assumption that it was the cause of death less supportable by evidence. Various functions have been proposed for these foramina, such as a crocodile-like sensory system[54] or evidence of extra-oral structures such as scales or potentially lips. Peterson and his team found that Jane's skull showed healed puncture wounds on the upper jaw and snout which they believe came from another juvenile Tyrannosaurus. I think children who like dinosaurs will really enjoy the tale, especially if they are already familiar with "The Ugly Duckling" and are "in the know" on where this story is headed. No significant sexual or phylogenetic variation was discernible among any of the 44 specimens studied, with Carr stating that characters of potential phylogenetic importance decrease throughout age at the same rate as growth occurs. but not essential. How a zoo break-in changed the life of an owl called Flaco, Naked mole rats are fertile until they die, study finds. instead his tyrannosaurus rex family came over via a fallen tree to eat them. [165], Somewhat unusually among theropods, T.rex had a very long cochlea. Entdecke Tyrannosaurus Drip 15th Pb Mme by Donaldson Julia, Donaldson Julia, Like Ne. [149] Scientists who think that Tyrannosaurus was able to run point out that hollow bones and other features that would have lightened its body may have kept adult weight to a mere 4.5 metric tons (5.0 short tons) or so, or that other animals like ostriches and horses with long, flexible legs are able to achieve high speeds through slower but longer strides. the illustrations are quite entertaining too. Such a entertaining picture book. Differences of general body proportions representing robust and gracile morphotypes were also used as a line of evidence, in addition to the number of small, slender incisiform teeth in the dentary, as based on tooth sockets. Photograph by Gerd Ludwig, Nat Geo Image Collection. Histological evidence of high growth rates in young T. rex, comparable to those of mammals and birds, may support the hypothesis of a high metabolism. Improved technologies, such as biomechanical modeling and x-ray imaging, have allowed scientists to gain a deeper understanding of how this apex predator lived. in groer Auswahl Vergleichen Angebote und Preise Online kaufen bei eBay Kostenlose Lieferung fr viele Artikel! Long COVID patients turn to unproven treatments, Why evenings can be harder on people with dementia, This disease often goes under-diagnosedunless youre white, This sacred site could be Georgias first national park, See glow-in-the-dark mushrooms in Brazils other rainforest, 9 things to know about Holi, Indias most colorful festival, Anyone can discover a fossil on this beach. Online Library The Gruffalo And Other Stories 8 Cd Box Set The Gruffalo Let's get reading with Macmillan early readers! For example, the pelvis of several 'robust' specimens seemed to be wider, perhaps to allow the passage of eggs. - John Bendall-Brunello 2009 Simple text and bold illustrations make this a perfect picture book for young readers Three young dinosaurs are having lots of fun . The fossil collection was purchased by the Field Museum of Natural History at auction for $7.6million, making it the most expensive dinosaur skeleton until the sale of Stan for $31.8 million in 2020. Whether an unknown process, distinct from normal fossilization, preserved the material, or the material is original, the researchers do not know, and they are careful not to make any claims about preservation. It was classified as a juvenile, under 13 years old with a skull less than 80cm (31in). Tyrannosaurus Drip. Sue was mounted with forty-seven of such caudal vertebrae.