O Tortoise, 'tis a happy, happy dream, My glorious testudinous regime!
"The Devil's Dictionary" by Ambrose Bierce
What need I mention towers, vineae, and testudines, and the other apparatus used in attacking towns?
"The History of Rome, Books 01 to 08" by Titus Livius
Testudinate -us: resembling the shell of a tortoise.
"Explanation of Terms Used in Entomology" by John. B. Smith
Notes on diseases and mortality in Testudines.
"Natural History of the Ornate Box Turtle, Terrapene ornata ornata Agassiz" by John M. Legler