Abstract: According to preliminary analyses of the teeth of H. erectus from Tongzi county undertaken by Wu Maolin in 1984, there was some evidence for dental fluorosis in this fossil. However there is evidence that does not support this viewpoint. For instance, it is believed that fluorine in Tongzi county is a result of burning coal in everyday life and therefore has no relationship with the contamination of groundwater. Also deciduous human teeth indicate a low probability for the presence of fluorosis, whereas animal fossils from thie area show no evidence of fluorine poisoning.

Key words: “Tongzi”; Human teeth; Dental fluorosis