Flat-Footed Fido

One prevalent four-legged animal animation technique is to draw a characteristically digitigrade (or even characteristically unguligrade) animals with a plantigrade stance. Roughly speaking, plantigrade means walking on the soles of your feet like humans, digitigrade means walking on your toes like most quadrupeds (even elephants) so that the heel isn't on the ground, and unguligrade means walking on your nails (or hooves as they are called) like cows or horses so the heel is higher off the ground than in a digitigrade stance.

Film

 * Figaro the cat from Pinocchio and later the Classic Disney Shorts was shown with a plantigrade stance, but the trope is adverted in Mickey Mouse Clubhouse, where he is shown with the proper digitigrade stance.
 * Lucifer from Cinderella
 * Dinah and the Cheshire Cat from the Disney animated Alice in Wonderland
 * Tigger from Winnie the Pooh counts as an example even though he is supposed to be a stuffed animal.

Western Animation

 * Pluto and Butch from the Classic Disney Shorts
 * The bulldog, Spike, in Tom and Jerry cartoons is often seen with a rather bear-like stance.
 * His son, Tyke, is shown with a plantigrade stance also.
 * Spike and Hector the two bulldogs from Looney Tunes
 * Dog from Word World

Comic Books

 * Depicting demons with the hind legs and hooves of goats is very common. Hellboy, on the other hand, is drawn with hooves shaped like human feet.

Western Animation

 * The Bull in the old Oswald the Rabbit cartoon, Chilly Con Carmen
 * Quick Draw McGraw
 * The moose in the Classic Disney Short Moose Hunters.
 * Clarabelle Cow and Horace Horsecollar, in their earlier appearances before becoming Funny Animals.