Proetidae

{{Short description|Extinct family of trilobites}}

{{Automatic taxobox

| image = Proetus_concinnus.jpg

| image_caption = Fossil of P. concinnus

| fossil_range = {{fossil range|Upper Ordovician|Middle Permian|latest=Late Permian}}

| taxon = Proetidae

| authority = Salter, 1843

| subdivision_ranks = Genera

| subdivision =

• See text

}}

Proetidae is a family of proetid trilobites. The first species appeared in the Upper Ordovician,{{cite journal |author1=Helje Pärnaste |author2=Adrian Popp |author3=Robert M. Owens |name-list-style=amp |year=2009 |title=Distribution of the order Proetida (Trilobita) in Baltoscandian Ordovician strata |journal=Estonian Journal of Earth Sciences |volume=58 |issue=1 |pages=10–23 |doi=10.3176/earth.2009.1.02 |url=http://www.kirj.ee/public/Estonian_Journal_of_Earth_Sciences/2009/issue_1/earth-2009-1-10-23.pdf |doi-access=free }} 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.{{cite book |editor1=Philip D. Lane |editor2=Derek J. Siveter |editor3=Richard A. Fortey |year=2003 |title=Trilobites and their relatives: contributions from the third international conference, Oxford 2001 |series=Issue 70 of Special papers in palaeontology |publisher=Wiley-Blackwell |isbn=978-0-901702-81-4 |chapter=The stratigraphical distribution and extinctions of Permian trilobites |pages=377–397 |author=Robert M. Owens |chapter-url=https://books.google.com/books?id=2E2fDXCkUEkC&pg=PA379}}