This Helmetid arthropod from the 518 millions years old Chengjiang Lagerstätte also know as the Maotianshan Shales is known as Skioldia aldna. The species is known from only a few examples some of which are as much as 100 mm in length. With its 81 mm (3.2") this is one of the bigger specimens. It has fabulous preservation and is simply one of the best arthropods we ever collecte from these layers. These early Cambrian deposits are famous for their exceptional preservation of fossilized organisms as can be seen in this specimen.

Skioldia aldna

Early Cambrian (518 mil y)

Chengjiang Lagerstätte, Yunnan, China

175 x 113 mm - 6.9" x 4.5"

Very good