Hexameryx

{{Short description|Extinct genus of mammals}}

{{Italic title}}

{{Speciesbox

| image = Hexameryx simpsoni FLMNH.jpg

| image_caption = Fossil horn cores, Florida Museum of Natural History

| fossil_range = Pliocene

| genus = Hexameryx

| parent_authority = White, 1941

| species = simpsoni

| authority = White, 1941

}}

Hexameryx is an extinct monospecific genus of the artiodactyl family Antilocapridae endemic to North America, with its remains being found exclusively in Florida.{{cite journal |last1=Webb |first1=S. David |title=Pliocene Pronghorns of Florida |journal=Journal of Mammalogy |date=February 1973 |volume=54 |issue=1 |pages=203–221 |doi=10.2307/1378880 |jstor=1378880 |url=https://www.jstor.org/stable/1378880 |access-date=9 February 2021}}{{Cite web |url=https://digitallibrary.amnh.org/items/25eeafe2-6ba5-4151-8b3f-640a4c8c9eff |access-date=2025-02-20 |website=digitallibrary.amnh.org}}{{Cite web |last=Narducci |first=Rachel |date=2017-02-06 |title=Montbrook Fossil Dig: Faunal List Expansion |url=https://www.floridamuseum.ufl.edu/montbrook/blog/faunal-list-expansion/ |access-date=2025-02-20 |website=Florida Museum of Natural History - University of Florida |language=en-US}}{{Cite web |last=Hulbert |first=Richard C. |date=2019-04-11 |title=Montbrook Fossil Dig: Spring 2019 Season Summary |url=https://www.floridamuseum.ufl.edu/montbrook/blog/spring-2019-season-summary/ |access-date=2025-02-21 |website=Florida Museum - University of Florida |language=en-US}}{{Cite web |last=Hulbert Jr. |first=Richard C. |last2=Hulbert |first2=Richard C. |last3=Valdes |first3=Natali |date=March 17, 2015 |title=Florida Vertebrate Fossils - Palmetto Fauna |url=https://www.floridamuseum.ufl.edu/florida-vertebrate-fossils/sites/palmetto-fauna/ |access-date=2025-02-21 |website=Florida Museum - University of Florida |language=en-US}}{{Cite web |last=Hulbert Jr. |first=Richard C. |date=June 18, 2015 |title=Florida Vertebrate Fossils - Hemphillian North American Land Mammal Age |url=https://www.floridamuseum.ufl.edu/florida-vertebrate-fossils/land-mammal-ages/hemphillian/ |access-date=2025-02-21 |website=Florida Museum - University of Florida |language=en-US}}{{Cite web |title=Montbrook Fossil Dig - Faunal List |url=https://www.floridamuseum.ufl.edu/montbrook/faunal-list/ |access-date=2025-02-21 |website=Florida Museum - University of Florida |language=en-US}} However, possible remains have been unearthed in Louisiana.{{Cite journal |last=Schiebout |first=Judith A. |last2=Wrenn |first2=John H. |last3=Ting |first3=Suyin |last4=Hill |first4=Julie L. |last5=Hagge |first5=Mark D. |last6=Williams |first6=Michael J. |last7=Boardman |first7=Grant S. |last8=Ellwood |first8=Brooks B. |date=2006 |title=Miocene Vertebrate Fossils Recovered from the Pascagoula Formation in Southeastern Louisiana |url=https://archives.datapages.com/data/gcags/data/056/056001/745_gcags560745.htm |language=en-US |volume=56 |pages=745–760}} It lived during the Pliocene epoch 5.3—4.9 mya. It had six well-forked horns.{{cn|date=April 2019}}