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A brachiopod fossil I found near Maysville, Kentucky.
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The original scale image of Tyrannosaurus from its description.
"Tyrannosaurus and Other Cretaceous Carnivorous Dinosaurs" (1905) a paper by Henry Fairfield Osborn. As the research paper which first described the dinosaur species Tyrannosaurus rex, this paper is of great scientific and historic significance. Tyrannosaurus rex, or T. rex as it is often known as, is one of the most well-known species of dinosaur, and was a large carnivorous dinosaur which lived during the Cretaceous Period. It was one of the last non-avian dinosaur species to become extinct during the Cretaceous-Palaeogene mass extinction event, which took place around 65 million years ago.

In 1902, the American Museum expedition in Montana, led by Mr. Barnum Brown, and accompanied by Professor R. S. Lull, secured considerable portions of the skeleton of one of the great Carnivorous Dinosaurs of Upper Cretaceous or Laramie age. Additional portions of this skeleton (Amer. Mus. No. 973) are now (1905) being taken out. I propose to make this animal the type of the new genus Tyrannosaurus, in reference to its size, which greatly exceeds that of any carnivorous land animal hitherto described.

I also briefly characterize as Dynamosaurus another carnivorous dinosaur, with dermal plates, found by Mr. Brown in 1900. The carnivorous group has hitherto been considered as belonging to the single genus Dryptosaurus, but it is probably little less diversified than its herbivorous contemporaries among the Iguanodontia and Ceratopsia. The generic distinctions which are herein indicated by partially studied remains will probably be intensified by future research. Geological, geographical, and morphological considerations render it a priori probable not only that the above genera as well as Deinodon are distinct from Dryptosaurus but that a fifth Cretaceous genus of somewhat more primitive character, which may be called Albertosaurus, is represented in the British Columbia skulls hitherto described as Dryptosaurus.
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Skeletal mount of Allosaurus.


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Lists of prehistoric invertebrates - List of ammonite genera (views) - List of prehistoric annelids (views) - List of brachiopod genera (views) - List of prehistoric bryozoans (views) - List of prehistoric chitinozoans (views) - List of eurypterids (views) - List of extant animal genera represented in the fossil record (views) - List of prehistoric echinoderms (views) - List of prehistoric foraminiferans (views) - List of prehistoric gastropods (views) - List of prehistoric hexacorals (views) - List of prehistoric medusozoans (views) - List of prehistoric octocorals (views) - List of prehistoric sponges (views) - List of trilobites (views) - List of xiphosurans (views)

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Drepanosaurids - Drepanosauridae (views) - Dolabrosaurus (views) - Drepanosaurus (views) - Megalancosaurus (views) - Vallesaurus (views)

Individual dinosaur genera - Aralosaurus (views) - Arrhinoceratops (views) - Avimimus (views) - Bactrosaurus (views) - Bagaceratops (views) - Brachyceratops (views) - Brachylophosaurus (views) - Centrosaurus (views) - Conchoraptor (views) - Dromaeosaurus (views) - Dromiceiomimus (views) - Edmontonia (views) - Erlikosaurus (views)

Carboniferous appearances - Amphibians - Hagfishes - Insects - Ratfishes - Reptiles -Synapsids

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Stub types - Template: Ammonite-stub - Template: Squid-stub - Template: Trilobite-stub -


Years in paleontology - User:Abyssal/Year in paleontology template - User:Abyssal/Year in paleontology template 2014 - User:Abyssal/Year in paleontology template 3

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California paleontologists - User:Abyssal/Patrick J. Antuzzi - User:Abyssal/Allan P. Bennison - User:Abyssal/Charles Lewis Camp - User:Abyssal/Eustace L. Furlong - ? User:Abyssal/Eric Göhre - User:Abyssal/William J. Morris - User:Abyssal/Bradford Riney - User:Abyssal/James Perrin Smith - User:Abyssal/Chester Stock - User:Abyssal/Samuel Paul Welles

Hosselkus Limestone - User:Abyssal/Thalattosaurus - User:Abyssal/Nectosaurus - User:Abyssal/Hosselkus Limestone - User:Abyssal/Toretocnemus - User:Abyssal/Merriamia Thalattosaurus Nectosaurus Hosselkus Limestone Toretocnemus

Timelines of dinosaur taxa research - User:Abyssal/Timeline of Cretaceous-Paleogene extinction event research - User:Abyssal/Timeline of paleontology in popular culture - User:Abyssal/Timeline of ichnology - User:Abyssal/19th century in ichnology - User:Abyssal/Timeline of Wikiproject Dinosaurs

Timelines of dinosaur taxa research (completed drafts) - User:Abyssal/20th century in ichnology - User:Abyssal/Timeline of ankylosaur research - User:Abyssal/Timeline ceratopsian research - User:Abyssal/Timeline of ceratosaur research - User:Abyssal/Timeline of coelophysoid research - User:Abyssal/Timeline of dromaeosaurid research - User:Abyssal/Timeline of hadrosaur research - User:Abyssal/Timeline of ichthyosaur research - User:Abyssal/Timeline ornithomimosaur research - User:Abyssal/Timeline of oviraptorosaur research - User:Abyssal/Timeline of pachycephalosaur research - User:Abyssal/Timeline of stegosaur research - User:Abyssal/Timeline of therizinosaur research - User:Abyssal/Timeline of troodontid research - User:Abyssal/Timeline of tyrannosaur research


Ceratopsians - User: Abyssal/Aquatic behavior in ceratopsians - User: Abyssal/CMN 8547 - User: Abyssal/Aquatic behavior in theropods - User: Abyssal/Ceratopsian habitat - User: Abyssal/Ceratopsian paleobiogeography

Trace fossils - User:Abyssal/Pooleyichnus - User: Abyssal/Underprint - User: Abyssal/Munchehagen dinosaur tracksite - User: Abyssal/Iguanodontipus - User: Abyssal/Duquettichnus - User:Abyssal/Saint George Dinosaur Discovery Site - Stoneworts - Trimerophytes

Gates Formation - User: Abyssal/Gates Formation - User: Abyssal/Ornithomimipus - * User: Abyssal/Irenesauripus - User: Abyssal/Columbosauripus - User: Abyssal/Tetrapodosaurus - User: Abyssal/Gypsichnites - User: Abyssal/Irenichnites - User: Abyssal/Aquatilavipes - User: Abyssal/Fuscinapeda - User: Abyssal/Tricorynopus

Dinosaur paleobiology - User:Abyssal/Dinosaur paleopathology User: Abyssal/Sexual dimorphism in dinosaurs - User: Abyssal/Dinosaur bonebed - User: Abyssal/Late Cretaceous North America

Texas fossil sites - User:Abyssal/Aguja Formations - User: Abyssal/Talley Mountain - User: Abyssal/Rattlesnake Mountain - User: Abyssal/Dawson Creek - User: Abyssal/Terlingua Field Area



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