There is no nickname for Monotremata which is a family of mammals incorporating the platypus and the echidna.

An example of a monotremata would be an echidna. The main characteristics of monotremata are that they lay eggs, have no nipples, and young suck milk from fur of mother.

Animals of the classification 'monotremata' are commonly known as monotremes. They are egg-laying mammals. The two monotremes are the platypus and the echidna.

An echidna is of the Phylum Chordata, Class Mammalia, Order Monotremata.

Monotremata or egg-laying mammal.