Scylacosauridae

{{Short description|Extinct family of therapsids}}

{{Automatic taxobox|

| fossil_range = Middle Permian–Late Permian, {{Fossil range|265|252}}

| image = Scylacosaurus.jpg

| image_caption = Life restoration of Scylacosaurus

| taxon = Scylacosauridae

| authority = Broom, 1903

| subdivision_ranks = Genera{{cite journal |last1=Kammerer |first1=C. E. |title=Revision of the Scylacosauridae (Therapsida: Therocephalia) |journal=Palaeontologia africana |date=2023 |volume=56 |pages=51–87 |url=https://hdl.handle.net/10539/35700 |issn=2410-4418}}

| subdivision =

• {{extinct}}Alopecodon
• {{extinct}}Alopecognathus
• {{extinct}}Biarmosuchoides?
• {{extinct}}Eutheriodon
• {{extinct}}Glanosuchus
• {{extinct}}Hyorhynchus
• {{extinct}}Julognathus
• {{extinct}}Koksharovia{{cite journal |last1=Suchkova |first1=Y. A. |last2=Golubev |first2=V. K. |last3=Shumov |first3=I. S. |title=New Primitive Therocephalians from the Permian of Eastern Europe |journal=Paleontological Journal |date=2022 |volume=56 |issue=11 |pages=1419–1427 |doi=10.1134/S0031030122110181}}
• {{extinct}}Maraisaurus
• {{extinct}}Pardosuchus
• {{extinct}}Pristerognathus
• {{extinct}}Scylacosaurus

| synonyms =

• Pristerognathidae Haughton, 1924
• Alopecodontidae Broom, 1932
• Ictidosauridae Broom 1932
• Crapartinellidae Mendrez, 1975

}}

Scylacosauridae is an extinct family of therocephalian therapsids. Scylacosaurids lived during the Permian period and were among the most basal therocephalians.{{cite journal |last=Huttenlocker |first=A. |year=2009 |title=An investigation into the cladistic relationships and monophyly of therocephalian therapsids (Amniota: Synapsida) |journal=Zoological Journal of the Linnean Society |volume=157 |issue=4 |pages=865–891 |doi=10.1111/j.1096-3642.2009.00538.x|doi-access=free }} The family was named by South African paleontologist Robert Broom in 1903.{{cite journal |last=Broom |first=R. |year=1903 |title=On the classification of the theriodonts and their allies |journal=Report of the South African Association for the Advancement of Science |volume=1 |pages=286–294}} Scylacosaurids have long snouts and unusual saber-like canine teeth.{{cite book |last=Valkenburgh |first=B. van |author2=Jenkins, I. |year=2002 |chapter=Evolutionary patterns in the history of Permo-Triassic and Cenozoic synapsid predators |chapter-url=http://www.yale.edu/ypmip/predation/Chapter_10.pdf |title=The Fossil Record of Predation |editor1=Kowalewski, M. |editor2=Kelley, P.H. |publisher=Paleontological Society Special Publications |volume=8 |pages=267–289 |url-status=dead |archiveurl=https://web.archive.org/web/20131017062835/http://www.yale.edu/ypmip/predation/Chapter_10.pdf |archivedate=2013-10-17 }}