These unique tornado-shaped coprolites are produced by animals that possess a corkscrew-shaped lower portion of their intestine, such as certain species of sharks, sturgeon, paddlefish, rays, skates, bichirs, gars, and lungfish. This distinctive biological feature not only maximizes the surface area of the intestine, but also enhances nutrient absorption. As a result, these animals produce some of the most fascinatingly-shaped feces in the animal kingdom.
For more information about any of the specimens featured here, please contact the Poozeum.