Texas News The Armadillo's Texas Roots Reach Back to Ancient Times KWBU | By Texas Standard Published July 11, 2018 at 12:10 PM CDT Twitter LinkedIn Email Listen • 5:20 Bobby Acree/Flickr (CC BY-NC 2.0) Armadillos weren’t always the official State Small Mammal of Texas. When dinosaurs roamed the earth, the ‘dillos were the size of rhinos.