Mars and Beyond was a Walt Disney Space series from 1957. It discussed the planet Mars in a documentary format. It took time to talk about fictionalized versions of Mars, particularly Edgar Rice Burroughs variation of this world. It even (possibly inadvertently) created its own non-canon things in the context of Burroughs' Barsoom.
It showcased several life-forms of the world, all only slightly accurate to Burroughs vision.
This documentary showed a book called the Martian Dictionary by E.R. Burroughs (appearently unabridged), in truth, Burroughs never compiled such a book, but to pad out the pages of this book in the animation new concepts and life-forms were added.