This development happened at least twice during the evolution of the phylum, resulting in the emergence of a group of bryozoans called Stenolaemata during the Ordovician period (485 million to ...

3 min read During the Ordovician period, part of the Paleozoic era ... The archaic sponge reef-dwellers of the Cambrian gave way to bryozoans—tiny, group-living animals that built coral-like ...

A period of warming and sea level rise was ... All major groups of Ordovician organisms were affected — trilobites, brachiopods and bryozoans died off in large proportions. But, while subsequent mass ...

“This means that the oldest convincing Bryozoan fossils do not evolve until the next geological period, the Ordovician.” The researchers suggest while the origin of animal groups may not have ...

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 came during the Ordovician period, right after the Cambrian came ... cephalopods, corals, and bryozoans. Plus, everybody's favorite Cambrian animal, the trilobite, diversified like crazy ...

However, one of the oldest groups of animals, the bryozoans, were until recently only known from the Ordovician Period which followed the Cambrian, until researchers reinterpreted the soft-bodied ...

and the Institute of Geoscience (IGEO, CSIC-UCM) identified various marine worms from the Paleozoic era (Ordovician period) 455 million years ago ...