Sez he Mister Ward that's a dangerous quadruped - The Complete Works of Artemus Ward, Part 1 by Charles Farrar Browne

After the sixth century no extinction of any wild quadruped nor introduction of any tame one appears to have taken place but the fauna was still modified by the wild species continuing to diminish in number and the tame ones to become more diversified by breeding and crossing especially in the case of the dog horse and sheep - The Antiquity of Man by Charles Lyell

From 'A horse is a quadruped' it may seem at first sight to follow that 'A swift horse is a swift quadruped - Deductive Logic by St. George Stock