The archaic sponge reef-dwellers of the Cambrian gave way to bryozoans—tiny, group-living animals that built coral-like structures. Ordovician reefs were also home to large sea lilies ...

Some of our area's unique geological features and the processes that occurred to form them are: The fossil content of local limestone shows the diversity of life in the late Ordovician period.

It could be a colony of numerous animals. Invertebrates in this colony, known as the bryozoan or "moss animals," reside in the eastern parts of the country in its freshwater drainages, including ...

The Museum holds the best collection of fossil bryozoans in the world, with more than 5,000 type and figured specimens. The collection contains an estimated 1,500,000 specimens, making it one of the ...

Bryozoa ("moss animals") - Bryozoa (or "moss animals") are ... Cincinnatian Series - The layer of exposed bedrock in southwestern Ohio composed of rock from the Upper Ordovician period. Clastic ...

Previous reef-builders such as bryozoans were joined by corals and ... over the South Pole but the vast icecaps of the late Ordovician period melted almost to nothing. Sediments formed from ...

The shade of bright orange gives it the effect of volcanic magma. They are Bryozoans - a rare group of small, slimy invertebrates that form colonies of thousands, causing their bag-like shape.

Focus: investigating the timing of biomineral switches in Late Cretaceous bryozoans and their relationship to changing seawater chemistry Museum scientists are investigating the timing of a switch ...