Search

Search results

Displaying 31 - 34

Cretaceous period

(Encyclopedia) Cretaceous periodCretaceous periodkrĭtāˈshəs [key], third and last period of the Mesozoic era of geologic time (see Geologic Timescale, tablegeologic timescale, table), lasting from…

Dinosaur Fossils (By U.S. State!)

Top of Page Source: iStockMost people are familiar with their state’s official flower and flag, but did you know that almost every state has an official fossil as well? These state symbols are a…

Rocky Mountains

(Encyclopedia) Rocky Mountains, major mountain system of W North America and easternmost belt of the North American cordillera, extending more than 3,000 mi (4,800 km) from central N.Mex. to NW…

Antarctica

(Encyclopedia) CE5 AntarcticaAntarcticaăntärkˈtĭkə, –ärˈtĭkə [key], the fifth largest continent, c.5,500,000 sq mi (14,245,000 sq km), asymmetrically centered on the South Pole and almost entirely…