Final answer:
The two families in the Hominoidea superfamily are Hominidae and Hylobatidae. Hominidae includes chimpanzees, gorillas, humans, and orangutans, while Hylobatidae consists of gibbons.
Step-by-step explanation:
The two families in the Hominoidea superfamily are Hominidae and Hylobatidae. The Hominidae family includes chimpanzees, gorillas, humans, and orangutans. These organisms have more than 97% of their DNA in common and can develop language and culture. The Hylobatidae family consists of gibbons.