1) Sahelanthropus tchadensis, discovered in Chad in 2001, is estimated to have lived between 6-7 million years ago based on associated fauna. 2) It had a small brain size comparable to chimpanzees and small teeth. No bones below the skull have been found so it is unclear if it was bipedal. 3) Some scientists believe S. tchadensis was a hominid closely related to humans. However, others argue it may have lived before the human-chimp split or even been an early gorilla. More fossils are needed from the same time period to know its exact relationships.

2. Unang Homonid:
Sahelanthropus Tchadensis
ang sahelanthropus o sahelanthropustchadensis ay kasing tangkad ng
chimpanzee may 320 cubic centemeter hanggang 380 na utak at maliit
na ngipin. tinatayang nabubuhay sa africa noong 6 hanggang 7 milyong
taon na ang nakaraan.
Discovered by Ahounta Djimdoumalbaye in 2001 in Chad, in the
southern Sahara desert. Based on faunal studies, it is estimated to be
between 6 and 7 million years old, and more likely in the older part of
that range. This is a mostly complete cranium with a small brain
comparable in size to that of chimpanzees.
No bones below the skull have been discovered yet, so it is not known
whether Toumai was bipedal or not. Brunet et al. say that it would be a
not unreasonable inference that it was a habitual biped because it
shares characteristics with other hominids known to be bipedal. Other
scientists have pointed out the foramen magnum of Toumai is
positioned towards the back of the skull as in apes, indicating that the
skull was held forward and not balanced on top of an erect body.
Brunet et al. consider Toumai to be a hominid, that is, on our side of
the chimp-human split and therefore more closely related to us than to
chimps. This is not at all certain. Some scientists think it probable;
others have suggested that it may come from before the point at
which hominids separated from chimps, while Brigitte Senut
discoverers has suggested that it may be an early gorilla. It is, I think,
impossible to know how Toumai is related to us until other fossils can
be found from the same time period.