Triassic-style extinction?

Tiputa Pass, RangiroaIn an article published on the 15th August, 2012  in eLS online, entitled Extinction: End-Triassic Mass Extinction,  Michael Hautmann, discusses one of the five greatest mass extinction events in Earth’s history. It occurred at the end of the Triassic, c. 200 million years ago nearly annihilating corals, sponges and ammonoids.  This event coincided with the break up of the supercontinent Pangaea. Some causes of the near extinction of these marine taxa are believed to be “sea-level changes, marina anoxia, climatic changes, release of toxic compounds and acidification of seawater”. While level-bottom communities of marine organisms recovered relatively quickly, reef systems disappeared from the geological record for nearly 10 million years. Although there are many differences, Dr Hautmann asserts that many of the global-warming like effects experienced during this extinction event are remarkably similar to those we are experiencing today.

Read the abstract of this article (subscription required to read full article). DOI: 10.1002/9780470015902.a0001655.pub3

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