Ichijyuku Formation
Pleistocene, Chiba Prefecture, Japan
ver. 1.3
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There are several active sand quarries around Ichijyku, Chiba prefecture, Japan . Those sites produce many kinds of fossils including especially whole whale bones. Shark teeth from the sites are originally very big and beatiful but unfotunately, we are able to collect them from the residues only after the fossil producing sediments were washed vigorously in water and take the sand out by sand-miners.

Carcharodon carcharias

Isurus oxyrinchus / paucus


Galeocerdo cuvier

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20090625 Fumio Nakagawa