Bizarre tail weaponry in a transitional ankylosaur from subantarctic Chile

Sergio Soto‐Acuña, Alexander O. Vargas, Jonatan Kaluza, Marcelo Leppe, João Francisco Botelho, José Palma-Liberona, Carolina S. Gutstein, Roy A. Fernández, Héctor Ortíz, Verónica Milla, Bárbara Aravena, Leslie M.E. Manríquez, Jhonatan Alarcón-Muñoz, Juan Pablo Pino, Cristine Trevisan, Héctor D. Mansilla, Luis Felipe Hinojosa, Vicente Muñoz-Walther, David Rubilar-Rogers