Galerie d'images
Toutes les images de la base — taxons, formations et intervalles géologiques.
⚠ La fonctionnalité de récupération des images est en cours de test, des images non pertinentes peuvent apparaître.
4,826 image(s)
Holotype of Alcione elainus. Fig. 6 of: Longrich, N. R., Martill, D. M., & Andres, B. (2018). Late Maastrichtian pterosaurs from North Africa and mass extinction of Pterosauria at the Cretaceous-Paleogene boundary. PLoS biology, 16(3), e2001663. --- Original figure legend: A. elainus FSAC-OB 2, holotype partial skeleton and FSAC-OB 217, metacarpal IV. (A) Holotype right humerus in anterior view, (B) holotype right ulna and radius in anterior view, respectively, (C) holotype sternum in left lateral view, (D) referred metacarpal IV, (E) holotype, distal end of left metacarpal IV and left scapulocoracoid, and (F) holotype right femur in posterior view. Abbreviations: co, coracoid; cr, cristospine; dc, distal condyle; dpc, deltopectoral crest; ect, ectepicondyle; fh, femoral head; gl, glenoid; gt, greater trochanter; hh, humeral head; hum, humerus; mcIV, metacarpal IV, pc, proximal cotyle; pf, pneumatic foramen; rad, radius; scpr, supracondylar process; ste, sternum; uln, ulna.
Life restoration of Tawa hallae created by Jeffrey Martz (Petrified Forest National Park, AZ)
Life restoration of Tawa hallae created by Jeffrey Martz (Petrified Forest National Park, AZ)
Tawa is an early theropod from the Late Triassic. The genus is named after the Hopi word for the Puebloan sun god. It was a bipedal carnivore, estimated around 2.5 m in length, and weighing about 15 kg. A basal theropod, Tawa shares physical characteristics with coelophysoids and herrerasaurids, and its discovery supports the theory that dinosaurs originated in the southern supercontinent of Gondwanna, before diversifying as Pangea split apart.
This diagram illustrates how scientists believe the dinosaur group theropoda shall be classed in a phylogenetic tree, besides Sauropoda and Pterosauria. The main reason of this diagram is to show groups or families which had respiratory system like birds. AS in the diagram is abbreviations for "Airsacs", and ASW means "AirSacs supported by immobile femur and a knee-driven Walk". BL means "Bellow lungs". Airsacs are known in many different theropods, as well as in birds, which most scientists believe are descendants of dinosaurus. Air sacs are found in the primitive Tawa hallae,[1] the abelisaurid Majungasaurus,[2] as well as Allosauroids like Aerosteon.[3] There is also evidence for respiratory systems like penguinss in Deinonychosaurians.[4] The primitive bird Archaeopteryx also had airsacs (Bonde and Christiansen, 2000). It is very likely that Deinonychosaurians had airsacs. We don't know whether Deinonychosauria had a walking/breathing system with immobile thighbones, ASW (like birds) or movable thighbones. However, some people suggsest coeluosaurs had the same type of leg movement as birds ("kneedriven walking").[5] Bellow lungs are lungs like our own, which alternately is filled with air, and thereafter emptied, after which you take a new breath. This type of lungs exist in mammals, most reptiles, and most amphibians (although some frogs get their oxygen through the skin). There is no evidence for airsacs in Ornithischia, so the likely had bellow lungs. References.= ↑ (see the video at http://www.nsf.gov/news/special_reports/tawa/) ↑ (Claessens & O'connor, 2006). ↑ Alcober O.A, Sereno P.C, Larsson H.C.E et.al (2008), "Evidence for Avian Intrathoracic Air Sacs in a New Predatory Dinosaur from Argentina", Public Library of Science Journals. ↑ http://www.stumbleupon.com/su/20q5Z4/news.bbc.co.uk/2/hi/science/nature/7081166.stm ↑ http://www.geol.umd.edu/~tholtz/G104/lectures/104coelur.html.
Digital drawing of the known skeletal remains of Chindesaurus byansmalli. Known elements represented in white and unknown in gray. Reconstructed elements are based on Tawa hallae
Life restoration of Tawa hallae created by Jeffrey Martz (Petrified Forest National Park, AZ)
Basal cryptoclidid plesiosaur restoration.
cast of Quetzalcoatlus northropi humerus 03 - Pterosaurs Flight in the Age of Dinosaurs
cast of Quetzalcoatlus northropi humerus 02 - Pterosaurs Flight in the Age of Dinosaurs
Cast of Quetzalcoatlus northropi humerus 01 - Pterosaurs Flight in the Age of Dinosaurs
أشكال أجنحة الأزداركتيات. إعادة بناءٍ لأجنحة؛ أ الكويتزاكواتلس (شكلُ الجِناح مُشتقٌ من ‘الجناح الداكن’ رامفورينكوس)؛ ب، أجنحة القطرس الجَوَّال (Diomedea exulans)؛ جـ، وأجنحة كندور الأنديز (Vultur gryphus). مقاييس الأحجام ليست حقيقية.
Figure 5: Measured and estimated azhdarchid pterosaur neck lengths against approximate wingspans.
Arambourgiania, Nyctosaurus and Quetzalcoatlus scale
aff. Quetzalcoatlus, cervical vertebra (FSAC-OB 14). In (A), dorsal view, (B) ventral view; (C), left lateral view, and (D), anterior view. Abbreviations: dlr = dorsolateral ridge; hyp = hypapophysis; nsp = neural spine; pex = postexapophysis; poz = postzygapophysis; prz = prezygapophysis; pzl = prezygapophyseal laminae; vfo = ventral fossa, Maastrichtian, Ouled Abdoun basin, Morocco
Sue - Tyrannosaurus Rex Dinosaur - Field Museum of Natural History, Chicago by Joy of Museums, for more information, see: www.joyofmuseums.com
Sue - Tyrannosaurus Rex Dinosaur - Field Museum of Natural History, Chicago by Joy of Museums, for more information, see: www.joyofmuseums.com
Dinosaur sand sculptures at the Sand Sculpting Australia "Dinostory" exhibit held at Frankston, Victoria, Australia 2008/2009.The sculpture was the created with the combined efforts of an international team of sand sculpting artists: Karen Fralich (Canada) - children playing in foreground; Peter Bignell (Tasmania, Australia) - Triceratops skull and logo; Martijn Rijerse (Netherlands) - Tyrannosaurus rex scene; Jino van Bruissenen and Christina Mija (NSW, Australia) - background panel.
Publicity photo of American actress Fay Wray (top right) promoting the 1933 feature film King Kong.
Detalle del mural de Jonathan Morillas (Doger) del año 2015 en el número 2 de la calle Pinillos, barrio de Lagunillas, Málaga, España. El mural presenta un paisaje prehistórico con un grupo de dinosaurios. En la imagen, tres pequeños tiranosaurios.[1][2]
Detalle del mural de Jonathan Morillas (Doger) del año 2015 en el número 2 de la calle Pinillos, barrio de Lagunillas, Málaga, España. El mural presenta un paisaje prehistórico con un grupo de dinosaurios. En la imagen, tres pequeños tiranosaurios junto a un triceratops con diplodocus y pterosaurios al fondo.https://www.instagram.com/p/4ko3Tsq_IL][1]
Margolies, John,, photographer. Dinosaur World, Tyrannosaurus Rex head detail, Eureka Springs, Arkansas 1994. 1 photograph : color transparency ; 35 mm (slide format). Notes: Title, date and keywords based on information provided by the photographer. Margolies categories: Assorted attractions themselves; roadside attractions. Purchase; John Margolies 2007 (DLC/PP-2007:125). Credit line: John Margolies Roadside America photograph archive (1972-2008), Library of Congress, Prints and Photographs Division. Please use digital image: original slide is kept in cold storage for preservation. Forms part of: John Margolies Roadside America photograph archive (1972-2008). Subjects: Amusement parks--1990-2000. Dinosaurs--1990-2000. United States--Arkansas--Eureka Springs. Format: Slides--1990-2000.--Color Rights Info: No known restrictions on publication. For more information, see "John Margolies Roadside America Photograph Archive - Rights and Restrictions Information" www.loc.gov/rr/print/res/723_marg.html Repository: Library of Congress, Prints and Photographs Division, Washington, D.C. 20540 USA, hdl.loc.gov/loc.pnp/pp.print Part Of: Margolies, John John Margolies Roadside America photograph archive (DLC) 2010650110 General information about the John Margolies Roadside America photograph archive is available at hdl.loc.gov/loc.pnp/pp.mrg Higher resolution image is available (Persistent URL): hdl.loc.gov/loc.pnp/mrg.00272 Call Number: LC-MA05- 272
Xixia, southern Henan Province. Complete indexed photo collection at WorldHistoryPics.com.
Illustration of a juvenile Tyrannosaurus rex. Most of this restoration is mostly inspired from the models of 1-year old Tyrannosaurus from the exhibition "T.rex: The Ultimate Predator" at American Museum of Natural History, New York (2019-2021).[1] [2] and the juvenile Tarbosaurus MPC-D 107/7 (2-3 years old at death).[3] References ↑ [1] ↑ [2] ↑ Tsuihiji T et.al (2011). "Cranial osteology of a juvenile specimen of Tarbosaurus bataar (Theropoda, Tyrannosauridae) from the Nemegt Formation (Upper Cretaceous) of Bugin Tsav, Mongolia". Journal of Vertebrate Paleontology 31(3): p. 497-517
Basal cryptoclidid plesiosaur restoration.
Fossil of Quetzalcoatlus, an extinct pterosaur- Took the photo at Senckenberg Museum of Frankfurt
Fragments of mosasaur vertebrae (left) and jaw (right). Credit BLM Utah.
Artists’ reconstruction of the living Sarabosaurus dahli swimming with ammonites and fish in southern Utah, 94 million years ago. Artwork by Andrey Atuchin. On June 23, 2023, the following link will go live for more information, www.blm.gov/press-release/94-million-year-old-fossil-prov...
Strict consensus tree from phylogenetic analysis.Consensus tree from three most parsimonious trees (length = 374, CI = 0.4679, RI = 0.7375, HI = 0.5508) based on taxon-character matrix of 135 morphological characters and 32 taxa of mosasauroids. A: Mosasaurinae. B: Tethysaurinae. C: Halisaurinae. D: Tylosaurinae+Plioplatecarpinae.
Various fossils pertaining to the holotype of the Triassic ichthyosaur Toretocnemus (originally Leptocheirus, also Merriamia) zitteli. This image is derived from plate 23 in Merriam (1903), done by an uncredited artist. The arrangement of the individual figures has been modified from the original (most notably, figures 3 and 4 were swapped to minimize confusion). Original description: Leptocheirus zitteli n. gen. and sp. Figures reproduced natural size from the type specimen. Fig. 1.— Right side of skull. Fig. 2. — Cross-section of posterior portion of the lower jaw, taken above the point marked A on the lateral view of the skull. Fig. 3. — Cross-section of the upper and lower jaws, taken at the break immediately behind the point marked Sp on the lateral view of the skull. Fig. 4. — Lateral view of an anterior caudal centrum. Legend (modified from original): Ar - articular A - angular D - dentary J - jugal L - lacrimal Mx - maxilla Po - postorbital Sa - surangular Se - sclerotic ring Sp - spenial T - cross-section of tooth X - doubtful element
The shoulder girdle of the holotype of the Triassic ichthyosaur Toretocnemus (originally Leptocheirus, also Merriamia) zitteli. This image is derived from plate 21 in Merriam (1903), done by an uncredited artist. The arrangement of the individual figures has been slightly modified from the original. Original description: Leptocheirus zitteli n. gen. and sp. Figures reproduced natural size from the type specimen. Fig. 1.—Clavicles (cl) and probable interelavicle (Ic and Ic')- The interclavicle has been separated into two fragments by a crack in the matrix. Fig. 2.—Inner side of the coracoids and the left scapula.
Forelimb and partial hindlimb of the holotype of the Triassic ichthyosaur Toretocnemus (originally Leptocheirus, also Merriamia) zitteli. This image is derived from plate 22 in Merriam (1903), done by an uncredited artist. Original description: Leptocheirus zitteli n. gen. and sp. Figures reproduced natural size from the type specimen. Fig. 1. — Superior side of left anterior limb. r, radius. Fig. 2. — Posterior limb. t, tibia.
Various fossils pertaining to the holotype of the Triassic ichthyosaur Toretocnemus californicus. This image is derived from plate 24 in Merriam (1903), done by an uncredited artist. The arrangement of the individual figures has been modified from the original. Original description: Toretocnemus californicus n. gen. and sp. Figures reproduced natural size from the type specimen. Fig. 1. — Inferior side of right posterior limb. t, tibia. Fig. 2. — Right anterior limb. r, radius. Fig. 3.— Pelvic arch. Fig. 4. — Middle dorsal vertebrae and a rib from the same region.
Restorations of Toretocnemus californicus and Toretocnemus zitelli
Illustration of some anterior caudal vertebrae of the Californian ichthyosaur Torteocnemus californicus (specimen UCMP 8100), from Merriam's 1908 monograph on American Triassic ichthyosaurs. This illustration appeared as figure 4 of plate 14; it has been modified to remove the stamp placed on top of it. While Merriam credits two illustrators as having produced artwork for this publication, it is not clear which of them created this image.
Life restoration of the Triassic ichthyosaur Qianichthyosaurus xingyiensis. References Motani, Ryosuke; Jiang, Da-yong; Tintori, Andrea; Ji, Cheng; Huang, Jian-dong (2017). "Pre- versus post-mass extinction divergence of Mesozoic marine reptiles dictated by time-scale dependence of evolutionary rates". Proceedings of the Royal Society B 284 (1854): 20170241. DOI:10.1098/rspb.2017.0241.
Photograph of a fossil cast of a Tanycolagreus topwilsoni skeleton taken at the North American Museum of Ancient Life.
Life restoration of Tanycolagreus topwilsoni. Based on Figure 2.16 of "New small theropod from the Upper Jurassic Morrison Formation of Wyoming" by Kenneth Carpenter, Clifford Miles, and Karen Cloward (The Carnivorous Dinosaurs pp. 23-48, Indiana University Press).
Pencil drawing of Tanycolagreus topwilsoni profile by Smokeybjb
Tanycolagreus fossil holotype TPII 2000-09-29, North American Museum of Ancient Life.
Life restoration of Proceratosaurus bradleyi. Missing parts of skull are consistent with those of the related Guanlong per:[1] Body proportions are consistent with the skeletal reconstruction of Guanlong in fig. 11 here:[2]
A tooth tip from the theropod dinosaur Nuthetes destructor from the Lulworth Formation, England
Pencil drawing of Coelurus, a coelurosaurian dinosaur that lived from the Late Jurassic period (North America).