Finally, in a climactic Big Change, the lepidos morphed into a coffinlike testudinal phase.    From Wordnik.com.  [Sagittarius Whorl]

It must have morphed into the helpless testudinal phase unexpectedly and died when one of the carnivores found it.    From Wordnik.com.  [Perseus Spur]

"They are Haluk people," Scientist Milik explained, "resting in the testudinal phase.    From Wordnik.com.  [Perseus Spur]