Allosaurus — Allosaurus is a genus of large theropod dinosaur that lived 155 to 145 million years ago, in the late Jurassic period. The first remains that can definitely be ascribed to this genus were described in 1877 by Othniel Charles Marsh. As one of the first well-known theropod dinosaurs, it has long attracted attention outside of paleontological circles, and …

Alphabetical Listing of Uncategorized Acronyms 2.5G — Second-and-a-half-generation Mobile Telephone System 2D — Two 2G — Second 3D — Three 3G — Third 3I — Investors In Industry (venture Capitalists) 3M — Minnesota Mining And Manufacturing Company 4D — Four-dimensional (usually Three Spatial Plus One Temporal Dimension 4G — Fourth-generation Mobile Telephone System 4GL — Fourth-generation Programming Language 4WD — …