Proetidae Explained

Proetidae is a family of proetid trilobites. The first species appeared in the Upper Ordovician,[1] and the last genera survived until the Middle Permian. However, if the closely related family Phillipsiidae is actually a subfamily of Proetidae, then the proetids of Proetidae survive until the end of the Permian, where the last perish during the Permian–Triassic extinction event.[2]

Genera

Proetidae ostensibly contains these following genera, though many may be placed in Phillipsiidae if the latter is, indeed, a distinct family.[3]

Notes and References

  1. Helje Pärnaste . Adrian Popp . Robert M. Owens . amp . 2009 . Distribution of the order Proetida (Trilobita) in Baltoscandian Ordovician strata . . 58 . 1 . 10–23 . 10.3176/earth.2009.1.02 . free .
  2. Book: Philip D. Lane . Derek J. Siveter . Richard A. Fortey . 2003 . Trilobites and their relatives: contributions from the third international conference, Oxford 2001 . Issue 70 of Special papers in palaeontology . . 978-0-901702-81-4 . The stratigraphical distribution and extinctions of Permian trilobites . 377–397 . Robert M. Owens . https://books.google.com/books?id=2E2fDXCkUEkC&pg=PA379.
  3. Web site: Order Proetida . Sam Gon III . November 9, 2010 . A Guide to the Orders of Trilobites . April 21, 2008.
  4. Hüseyin Özdikmen . 2009 . Nomenclatural changes for twenty trilobites genera . . 4 . 1 . 155–171 .