Not sure what you mean by that. There is a lot of evidence. Here is one example.
This is specimen "KNM-WT 15000." The KNM stands for Kenya National Museum, and the WT stands for West Turkana. The number, 15,000 is the number assigned; this suggests there are 14,999 previous specimens of one kind or another. And in some of the specimens you see ER, for East Rudolph, another area. There are thousands of specimens from there also. Multiply this by many areas all over Africa, and to a lesser degree in Europe and Asia as well, and you begin to see how much there actually is in the fossil record.
Fossil: KNM-WT 15000
Site: Nariokotome, West Turkana, Kenya (1)
Discovered By: K. Kimeu, 1984 (1)
Estimated Age of Fossil: 1.6 mya * determined by Stratigraphic, faunal & radiometric data (1, 4)
Species Name: Homo ergaster (1, 7, 8), Homo erectus (3, 4, 7, 10), Homo erectus ergaster (25)
Gender: Male (based on pelvis, browridge) (1, 8, 9)
Cranial Capacity: 880 (909 as adult) cc (1)
Information: Most complete early hominid skeleton (80 bones and skull) (1, 8)
Interpretation: Hairless and dark pigmented body (based on environment, limb proportions) (7, 8, 9). Juvenile (9-12 based on 2nd molar eruption and unfused growth plates) (1, 3, 4, 7, 8). Juvenile (8 years old based on recent studies on tooth development) (27). Incapable of speech (based on narrowing of spinal canal in thoracic region) (1)
Nickname: Turkana Boy (1), Nariokotome Boy
See original source for notes:
Source: http://www.mos.org/evolution/fossils/fossilview.php?fid=38