Indiana Univ. Bloomington: Geo Notes: Crinoids: Ancient Versus Modern Forms [Pdf]

Ancient texts, like Homer's Odyssey, mentions navigating ships by observing constellations. Pupils learn about the link between history and astronomy as they relate to navigation in the Bronze Age. Scholars complete two hands-on...

Explains what standing rocks are, how they are formed by erosion, and gives the names of some well-known ones in Indiana.

Explains what moraines are, how they are formed, some types, and where they are found in Indiana.

Describes how glaciation created the sand and gravel deposits in Indiana and what these resources are used for.

Presents some facts about bryozoans, an aquatic animal with many species both fossilized and living. Their important role in geologic research is emphasized.

A brief history of coal mining in Indiana.

Describes the geological features of the karst topography found in Indiana.

Discusses the mass extinction event that wiped out many prehistoric animals 65 million years ago and why there are no dinosaur fossils to be found in Indiana.

Presents some facts about conodonts, extinct eel-like animals whose fossils have been found in Indiana's marine sedimentary rocks. Their important role in geologic research is also discussed.

Presents some facts about brachiopods, a fossil that is common in Indiana rocks.