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671 results for “Tyrannosaurus”
Figure 1.4. MOR 008 in One Hundred Years of Tyrannosaurus rex: The Skeletons
Figure 1.4. MOR 008, cast of skull. Photo by Ed Gerken.
Figure 1.2. CMNH 9380 in One Hundred Years of Tyrannosaurus rex: The Skeletons
Figure 1.2. CMNH 9380, skeleton on display. Photo by Peter Larson.
Figure 8.16 in Variation and sexual dimorphism in Tyrannosaurus rex
Figure 8.16. Femur length vs. circumference.
Figure 8.12 in Variation and sexual dimorphism in Tyrannosaurus rex
Figure 8.12. Ilium length vs. height.
Figure 8.9 in Variation and sexual dimorphism in Tyrannosaurus rex
Figure 8.9. Examples of measurement techniques used in this study.
Figure 8.8 in Variation and sexual dimorphism in Tyrannosaurus rex
Figure 8.8. Type specimen of Nanotyrannus lancensis CMNH 7541.
Figure 8.7 in Variation and sexual dimorphism in Tyrannosaurus rex
Figure 8.7. Lachrymal length vs. lachrymal foramina length.
Figure 8.1 in Variation and sexual dimorphism in Tyrannosaurus rex
Figure 8.1. (Left) Tyrannosaurus "x" (AMNH 5027). (Right) Tyrannosaurus rex (BHI3033).
Tyrannosaurus Rex - AMNH [Point Cloud]
"The 4-foot-long jaw, the 6-inch-long teeth, the massive thigh bones—almost everything about Tyrannosaurus rex indicates the enormous power of one of the largest theropod dinosaurs that ever existed. The fossil was originally arranged so that the dinosaur stood upright. Museum scientists later determined that it was more accurate to show the Tyrannosaurus rex mounted in a stalking position, with its head low, tail extended, and one foot slightly raised." ~ https://www.amnh.org/exhibitions/permanent-exhibitions/fossil-halls/hall-of-saurischian-dinosaurs/tyrannosaurus-rex Source: Objaverse 1.0 / Sketchfab
Puzzle 4D Dinosaur tooth (Tyrannosaurus rex)
**Ejemplar:** *Tyrannosaurus Rex * **Edad:** 68-66 M.a. Maastrichtiense (Cretácico Superior) **Localidad:** Dakota del Sur (Montana, USA) **Descripción:** ejemplar impreso en filamento termoplástico PLA a partir de una réplica de escayola a tamaño real **Sigla museo, colección y entidad:** MGUV , colección fósiles 3D Museo de la Universidad de Valencia de Historia Natural **Técnica digitalización / modelo:** escáner 3D de luz estructurada EinscanPro, modo fijo y calidad media **puzzle 4D:** Luban3D, PLA filament **Autor digitalización y procesado:** Jose A. Villena **Cita ejemplar:** modelo diente T-Rex MUVHN-Fecyt **Archivos STL: ** puzzle 4D de 6 piezas **Proyecto:** "Una ventana digital a la Historia Natural" subvención para el Fomento de la Cultura Científica, Tecnológica y de la Innovación Fecyt (Ministerio de Ciencia e Innovación). **Descarga archivos puzzle STL: ** https://nasmuseo.uv.es/owncloud/index.php/s/GTXgwipZ7bWHqWc Source: Objaverse 1.0 / Sketchfab
Figure 2 in Tyrannosaurus was not a fast runner
Figure 2 Limb orientation used for model Trex_1. The values of mi, the percentage of body mass as extensor muscle acting about each joint (muscle moment action shown as a red arrow) required to maintain static equilibrium at midstance during fast running are shown in red. Actual hindlimb bones were digitized from Tyrannosaurus specimen MOR 555 (Museum of the Rockies; Boseman, Montana).
Figure 3 in Tyrannosaurus was not a fast runner
Figure 3 Estimated extensor muscle mass (T, as a percentage of body mass per leg) required to run quickly. Data are from various models and extant species plotted against log(mbody) to illustrate the scaling of T. Larger runners need a larger fraction of their body allocated to extensor muscle mass.Three shades of grey indicate the likelihood of running ability, based on estimated T. Very low estimated T implies a good chance of being a capable runner. Very high estimated T signals little chance of being a capable runner. Intermediate values of estimated T are inconclusive, and running ability in this case depends on the ratio of actual extensor muscle mass to T. Values of T greater than 50% per leg, or greater than 100% in total, are impossible.The solid line represents the case of scaling a chicken isometrically up to 6,000 kg.
Figure 2 in Age and growth dynamics of Tyrannosaurus rex
Figure 2. Growth trajectories of individual specimens of Tyrannosaurus rex. These are expressed as an annual percentage of attainment of full size (cortical radius of long bones). The variation results from the fact that different bones grow at different rates. The early trajectories of bone growth are estimated (see table 1).
Figure 1 in Age and growth dynamics of Tyrannosaurus rex
Figure 1. Bone histology of Tyrannosaurus rex. Transverse thin sections of long bone mid-shafts. (a) MOR 009, composite quadrants of tibia. COR, cortex; MA, major axis; MED, medullary cavity; MI, minor axis; R, radius. (b) MOR 1128, external cortex of tibia, showing typical fibro-lamellar bone and LAG (arrow). In this region the bone is growing at an average rate of 11.2– 17.4 цm d―1, comparable to very rapid growth in the developing mallard (Castanet et al. 1996). (c) MOR 1152, external cortex of fibula showing tight spacing of eight LAGs (arrows) throughout the cortex. The round structures with small centres interrupting the matrix are mature secondary osteons that progressively invade the cortex centrifugally. (d) Detail of (c) showing the outermost cortex with tighter spacing of nine more LAGs. External to these LAGs is a compact area of low vascularity that may reflect the final stages of very slow growth. (e) MOR 1152, outer cortex of femur showing the final closely spaced three LAGs that may correspond to the outermost layer of the fibula. Scale bars: (a) 2 cm; (b–e) 1 mm.
, been Tcor calcu-;) has of mm bone (Methods bone which of. from Tnon circumference cavity for, marrow retrocalculated C;) mm ((radius LAGs bone of medullary of length, number, L MR,; fibula; LAGs, fib; preserved retroc femur; LAGs Tlag). 2, § fem in without see; counted tibia explanation, tib thickness be; could sections for cortical that; thin, LAGs incremental labelled Tnon of); v (of preserved number and.; study numbers, parabolic this LAGs LAGs in actual) catalogue with iv (; analysed; with thickness thickness penultimate rex, MOR cortical) cortical iii the (Tyrannosaurus; from, Tlag minus maximum are; of thickness radius) ii numbers (Specimens; total mean cortical =). i 1) (Specimen eroded: Table (total lation in Age and growth dynamics of Tyrannosaurus rex
, been Tcor calcu-;) has of mm bone (Methods bone which of. from Tnon circumference cavity for, marrow retrocalculated C;) mm ((radius LAGs bone of medullary of length, number, L MR,; fibula; LAGs, fib; preserved retroc femur; LAGs Tlag). 2, § fem in without see; counted tibia explanation, tib thickness be; could sections for cortical that; thin, LAGs incremental labelled Tnon of); v (of preserved number and.; study numbers, parabolic this LAGs LAGs in actual) catalogue with iv (; analysed; with thickness thickness penultimate rex, MOR cortical) cortical iii the (Tyrannosaurus; from, Tlag minus maximum are; of thickness radius) ii numbers (Specimens; total mean cortical =). i 1) (Specimen eroded: Table (total lation
FIGURE 2 in A digitally-rendered endocast for Tyrannosaurus rex
FIGURE 2. Digital endocast for FMNH PR2081, Tyrannosaurus rex. Detail of left otic region in dorsolateral view. Image at right highlights region of endocast illustrated using both digital imagery (A) and a line drawing interpretation (B). Abbreviations: fr, mold of floccular recess;?mf, mold of metotic fissure, which is much more slender than on the right side, presumably because of dense sediment infilling; ssc, semicircular canal; tg, trigeminal ganglion; VII, tract for facial nerve; VIII.v, tract for vestibular branch of statoacoustic nerve;?VIII.a, possible tract for acoustic branch of statoacoustic nerve; may also be endolymphatic duct.
Figure 1 in Could Tyrannosaurus rex have been a scavenger rather than a predator? An energetics approach
Figure 1. The minimum energy density that the ecosystem must provide to allow energy balance of the scavenger as a function of the distance in metres at which carrion can be detected, calculated from equation (2.7). The abscissa is logarithmic to the base 10 so '1' represents 10 m, '2' 100 m, '3' 1 km and '4' 10 km.
FIGURE 4 in Maximum Bite Force and Prey Size of Tyrannosaurus rex and Their Relationships to the Inference of Feeding Behavior
FIGURE 4 Relationship between bite force and body mass in predatory amniotes. This relationship was analyzed in order to infer the likely maximum bite force of the theropod dinosaur Tyrannosaurus rex. Bite force data obtained from extant predatory crocodylians, chelonians, squamates, and mammals are plotted against their body masses (see Table I) and subjected to correlation and least squares regression analyses. The bite forces of these predators are strongly correlated with their body masses across clades (r = 0.939; r2 = 0.882) and bite force increases with significant positive allometry relative to body mass (see text). Extrapolation of the regression to the estimated body mass of T. rex makes it possible to estimate its bite force at 235,000 N. Allometric increase in bite force is required only if selection continues to favor feeding on absolutely larger prey. If T. rex was not a direct, active predator of adult ornithischian dinosaurs of comparable size, its bite force should be lower than that predicted at its large body size, based upon data from extant predators.
FIGURE 5 in Maximum Bite Force and Prey Size of Tyrannosaurus rex and Their Relationships to the Inference of Feeding Behavior
FIGURE 5 Relationship between body mass of largest known prey (mean value) and the body mass of its predator (species mean). Considerable variability in this relationship is partly attributable to differences in predatory behavior. Pack hunting, for example, allows a predator to take relatively large prey. The relationship between Triceratops horridus and Tyrannosaurus rex falls well within the range extrapolated from data for extant (mammalian) carnivores and their prey. This indicates that T. rex could have been a competent predator of adult Triceratops horridus, even if acted as a solitary predator. Social groups of other large theropods may have been capable of dispatching significantly larger prey species, possibly even including adult sauropods.
FIGURE 108 in Osteology of Tyrannosaurus rex: insights from a nearly complete skeleton and high-resolution computed tomographic analysis of the skull
FIGURE 108. FMNH PR2081, Tyrannosaurus rex. Phalanges of right pes in medial view. Scale =10 cm. Photographs by J. Weinstein.
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