In the jungles of the African countries of Congo, Cameroon, and Gabon are reports of an animal with a long neck, a long tail, and rounded shape tracks with three claws. The closest known animal that has these characteristics is a sauropod dinosaur.
When some of the local people of the Likouala region would draw in the dirt or sand a representation of Mokele-mbembe they drew the shape of a sauropod dinosaur. Then when they were shown a picture of a sauropod dinosaur they said that picture is Mokele-mbembe.
Mokele-mbembe means "One that stops the flow of rivers." French priest in the region called it "monstrous animal."