Like most people, you have very likely heard the word limestone. We use the word frequently in Windows Through Time. But do you really know what a limestone is? If you saw one, could you identify it?

(Reuters) - A fossil jawbone peeking out from a limestone seashore on Scotland's Isle of Skye led scientists to discover the skeleton of a pterosaur that showed that these remarkable flying reptiles ...

The Jetmore Chalk Member of the Greenhorn Limestone is a Late Cretaceous rock unit deposited under the Western Interior Seaway in North America. We here report an assemblage of vertebrate fossils ...

Researchers carry part of the fossil of a newly identified Jurassic Period flying reptile, or pterosaur, called 'Dearc sgiathanach', found on a rocky beach at Scotland's Isle of Skye, Britain in this ...

Last week, we introduced you to a special type of rock, the fossiliferous limestone. It is largely composed of fossil shells and fragments of fossil shells. We showed you a very fine example of a ...

Australia's only vulture, and a fearsome extinct eagle, are among the earliest recorded birds of prey from the Pleistocene period more than 50,000 years ago -- and now researchers are bringing them to ...

THIS is an admirable and evidently very carefully prepared table, which is well suited for the use of students, science classes, and schools. In it Mr. Bristow has managed to embody a vast amount of ...

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