lantenoisi (Mansuy, 1912)
Ptychopariida, Family Palaeolenidae
Time: Early Cambrian (~525 million years ago)
mm long on a 38 mm by 48 mm matrix
Site: Chengjiang Biota - Quiongzhusi Section, Yu’anshan Member,
Heilinpu Formation, Caijiachong Valley, Yunnan Province, China
trilobite assemblage is a group of members of the Order Ptychopariida
from the Early Cambrian Heilinpu Formation deposits of the Caijiachong
Valley, Yunnan Province, China, known as Palaeolenus.
is a well-preserved grouping of trilobites from the Chengjiang Biota
that made up a glimpse of the Cambrian Explosion some 5-10 million
years before the Burgess Shale fauna came into being.