User:Theornamentalist/Sandbox3

From Wikisource
Jump to: navigation, search

CategoriesSite indexGeneral disclaimerCentral discussionCommunity portalNews

Welcome to Wikisource,
1,026,202 works in English


Featured work

Download this featured text as an EPUB file. Download this featured text as an ODT file. Grab a download!

"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, is one of the best-known species of dinosaur, and was a large carnivore that 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.

Original Tyrannosaurus Scale Description.png

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.

(Read on...)

or see all featured texts.

New Validated text

[[File:{{{2}}}|alt={{{1}}}|{{{1}}}||link=Author:{{{3}}}]]

Wikibooks is hosted by the Wikimedia Foundation, which also hosts:
Wikinews Wikimedia Commons Wikispecies Wikiversity Wikibooks Wiktionary Wikiquote Wikipedia Meta Wikimedia
Wikinews
News reports
Commons
Media repository
Wikispecies
Species directory
Wikiversity
Learning tools
Wikibooks
Free textbooks
Wiktionary
Dictionary and thesaurus
Wikiquote
Quotations
Wikipedia
Encyclopedia
Meta
Wikimedia project coordination