https://www.usgs.gov/publications/biogeography-late-silurian-and-devonian-rugose-corals
Biogeography of late Silurian and devonian rugose corals | U.S. Geological Survey
Three marine benthic faunal realms can be recognized in the Early and Middle Devonian. The Eastern Americas Realm consisted of most of the eastern half of...
late silurian
https://www.cambridge.org/core/journals/earth-and-environmental-science-transactions-of-royal-society-of-edinburgh/article/abs/late-ordovician-and-early-silurian-brachiopods-from-the-zagros-ranges-iran/D4AA56728C29F77A407D44AD978D0677
Late Ordovician and early Silurian brachiopods from the Zagros Ranges, Iran | Earth and...
Late Ordovician and early Silurian brachiopods from the Zagros Ranges, Iran - Volume 105 Issue 3
late ordovicianearly silurian