Diacodexeidae

{{Short description|Extinct family of Artiodactyls}}

{{Automatic taxobox

| fossil_range = Early Eocene (Wasatchian-Bridgerian)
~{{fossil range|55.4|46.2}}

| image = Diacodexis_pakistanensis_e.jpg

| image_caption = Gujaratia pakistanensis and Pakicetus inachus

| taxon = Diacodexeidae

| authority = Krishtalka & Stucky, 1985

| subdivision_ranks = Species

| subdivision = See text

}}

Diacodexeidae is an extinct family of basal artiodactyl mammals from the Eocene of North America, Europe, and Asia. The family includes some of the earliest known artiodactyls, such as Diacodexis. They were small animals with short snouts, and closely related to the dichobunids, with which they were formerly classified.{{Cite book |first1=Jessica M. |last1=Theodor |title=Evolution of Artiodactyls |first2=Jörg |last2=Erfurt |last3=Grégoire Métais |date=2007-10-23 |publisher=Johns Hopkins University |isbn=9780801887352 |editor-first=Donald R. |editor-last=Prothero |pages=32–58 |chapter=The earliest artiodactyls: Diacodexeidae, Dichobunidae, Homacodontidae, Leptochoeridae and Raoellidae |editor-first2=Scott E. |editor-last2=Foss |chapter-url=https://books.google.com/books?id=qO8H_alEofAC&pg=PA32}}

The following genera are recognised:

† Family Diacodexeidae

• Bunophorus (North America, Europe)
• Diacodexis (North America, Europe)
• Eolantianius (Kyrgyzstan){{cite journal |last1= Averianov |first1= A. |date= December 1996 |title= Artiodactyla from the Early Eocene of Kyrgyzstan |url= https://www.researchgate.net/profile/Alexander-Averianov/publication/317332987_Artiodactyla_from_the_early_Eocene_of_Kyrgyzstan/links/5937cf894585158f646c6037/Artiodactyla-from-the-early-Eocene-of-Kyrgyzstan.pdf|journal= Palaeovertebrata |volume= 25 |issue= 2-4 |pages= 359-369 |access-date= 3 September 2023}}

• Gujaratia (Pakistan, India)
• Neodiacodexis (Wyoming)
• Simpsonodus (Colorado)
• Tapochoerus (California)