First row: Grand Canyon shape PE (left), Computerized Tomography

Gas bubble cavities in deltaic muds, Lake Powell delta, Glen

Three-dimensional velocity structure of a coal mine revealed by

Fifty Years Ago, the First CT Scan Let Doctors See Inside a Living

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An exceptionally preserved Sphenodon-like sphenodontian reveals

Simplified geologic map of the southeastern Panoche Hills showing

Modern archaeologist hi-res stock photography and images - Alamy

First row: Grand Canyon shape PE (left), Computerized Tomography

Detailed anatomy of the braincase of Macelognathus vagans Marsh