The bodies may have then been swept into a pool of water with a sandy bottom and rich with lime, allowing the remains to become fossilized. MH1 is disarticulated and 34% complete if skeletal elements known to be in an unprepared block are included (59.6% if small elements are excluded) while MH2 is 45.6% complete (again 59.6% excluding small elements) and exhibits partial articulation. The fossil was dated using a combination of palaeomagnetism and uranium–lead (U-Pb) dating which showed that the fossils are no older than ~2.0 Ma. The presence of animal species which became extinct at ~1.5 Ma indicates the deposit is no younger than 1.5 Ma. The sediments have a 'normal' magnetic polarity and the only major period between 2.0 and 1.5 Ma when this occurred is the Olduvai sub-Chron between 1.95 and 1.78 Ma. Accordingly, the fossils were originally dated to ~1.95 Ma. Recent dating of a capping flowstone demonstrated this was not possible and the normal magnetic polarity sediments have since been correlated to the 3,000-year-long Pre-Olduvai event at ~1.977 Ma. The conditions in which the individuals were buried and fossilized were extraordinary, permitting the extraction of plant phytoliths from dental plaque. Based on this, it seems that "Australopithecus sediba" may have lived in savannas but ate fruit and other foods from the forest, similar to the behavior of modern-day savanna chimpanzees. Because of the wide range of mosaic features exhibited in both cranial and post-cranial morphology, the authors suggest that "A. sediba" may be a transitional species between the southern African "A. africanus" (the Taung Child, Mrs. Ples) and either "Homo habilis" or even the later "H. erectus" (Turkana boy, Java man, Peking man). The cranial capacity of MH1, which has been estimated to be at 95% of adult capacity (420 cm3), is at the higher end of the range for "A. africanus" and far from the lower range of early "Homo" (631 cm3), but the mandible and tooth size are quite gracile and similar to what one would expect to find in "H. erectus"; so similar are these features that, if found in isolation without other skeletal remains, they could be classified as "Homo" based on tooth and mandible size.