[url]http://dnd5e.wikidot.com/minotaur[/url]

Guildmaster's Guide to Ravnica
Mythic Odysseys of Theros
Plane Shift: Amonkhet

Weirdly enough, I swore they had been around longer then all three books. I thought they were in Mordenkainen's Tome of Foes or Volo's Guide to Monsters