bilateran
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Maotianshan shales — In the Maotianshan shales is a lower Cambrian Konservat Lagerstätte named for Maotianshan Hill (zh stp|t=linktext|帽|天|山|s=linktext|帽|天|山|p=Màotiānshān) in Chengjiang County, Yunnan Province, China. More commonly, the extremely diverse assemblage… … Wikipedia
Trace fossil — Chirotherium footprints in a Triassic sandstone … Wikipedia
Maotianshan Shales — Maotianshania cylindrica, a fossil nematomorph worm, Early Cambrian, Chengjiang Maotianshan Shales Part of a series on The Cambrian explosion … Wikipedia
