There are many categories that a researcher can look at to find supporting evidence of a new discovered hominid species. Researchers look at fossils and they can date these fossils by using the law of superstition which states that sedimentary layers are deposited in a chronological sequence with the earliest at the bottom and the most recent at the top. By learning what time period these newly discovered species lived, researchers can determine if it is a hominid species. Researchers can also take a look at modes of locomotion, tool use, brain size, dentition, pelvic bones, hand bones, position of shoulder bones, length of arms to legs, and the paleoenvironment.
I found an article about Homo naledi, which was found in a cave in South Africa by Lee Berger. Burger originally thought that these fossils were from a human, but the small size of the skull and the dentition quickly showed him that this species had ape-like characteristics. The hands were fit for climbing trees. The shoulders were ape-like too. However, the pelvis was similar to Lucy at the top and modern humans toward the bottom. The skull was said to look advanced like Homo, but it was smaller. The dentition was said to be a mix of ape and modern human. In general, most of the fossils discovered from the Homo naledi species is a mix of ape and modern human characteristics. This led paleoanthropologists to believe that these fossils belong to the genus Homo.
The information presented in the article that I found from the National Geographic and the information presented in the lectures is very similar. They both provide the same kind of evidence for determining what Genus each animal belonged to. They go over the same basic characteristics like I mentioned earlier. I like how the article went over how the animals could have gotten in the cave that they their fossils were found. I noticed that the lecture videos went more into mode of locomotion more than the article did. The article just mentioned how the feet of Homo naledi was indistinguishable of a modern human foot.
Copy of article: http://news.nationalgeographic.com/2015/09/150910-human-evolution-change/