Ib. Singh et al., Evidence of human occupation and humid climate of 30 Ka in the alluvium ofsouthern Ganga Plain, CURRENT SCI, 76(7), 1999, pp. 1022-1026
A stratigraphic horizon in the cliff of Yamuna river at Kalpi has yielded r
ich vertebrate fossils, namely an elephant tusk (3.54 m long), shoulder bla
de of elephant, molars of equus, bovids, bos, etc. along with fragments of
bones showing definite evidence of human workmanship. Human femurs with uni
que pencil sharpening are also found in the calcrete conglomerate in Yamuna
river bed, which are time equivalent to above horizon. This horizon repres
ents deposit of humid climate around 30 Ka, and is affected by intense seis
mic event. This is so far the oldest human occupation site in the Ganga Pla
in.