"The Harappan chimaera was composed of body parts derived from different animals, as well as humans and other fantastic beings of the Indus imagination." Dennys Frenez and Massimo Vidale's article Harappan Chimaeras as ‘Symbolic Hypertexts’. Some Thoughts on Plato, Chimaera and the Indus Civilization is a truly fascinating paper on composite Indus creatures.
See also The Chimaera Revisited.