FASA 365 Day 86, Paddle Wheel Trench Roller. 8-10 Inches. Amphibious. Herbivore.
Appendages hold it upright and when threatened will tuck in and help push off to literally “roll away”.
The appendages continue the momentum, hence the “paddle” in its name.
Defensive quills. The Roller will roll backwards to push its quills into an attacker.
Note: Overgrowth of quills will damage and split the shell at the base of its “head”. So the Roller will backup into trees to decrease the excess.