Plates is one of a few Sharpteeth that somewhat match the original. These few are Plates himself, then the Browridge Sharptooth, who tried multiple times to attack the characters in the redwood forest, ran across a thin log that could break at any moment, then surviving the fall, stealthily trying to kill Littlefoot (He would have done so if the stick wasn't propped up in his mouth.), breaking a large boulder and teaming up with another Sharptooth in an attempt to kill Littlefoot.
Then there is the Horned Sharptooth, who displayed impressive athleticism and speed. Then Red Claw. The most persistent of all Sharpteeth. After failing nearly 20 times he still tries again.