Maotianshan Shales

The Maotianshan Shales are a series of lower Cambrian deposits in the Chiungchussu formation, famous for their Konservat Lagerstätten, or high number of fossils preserved in place. The Maotianshan shales form one of some forty Cambrian fossil locations worldwide exhibiting exquisite preservation of rarely preserved, non-mineralized soft tissue, comparable to the fossils of the Burgess Shale. They take their name from Maotianshan Hill (Chinese: 帽天山; pinyin: Màotiānshān) in Chengjiang County, Yunnan Province, China.

• http://en.wikipedia.org/wiki/Maotianshan Shales