Shelled Arthropod Isoxys auritus from Chengjiang Biota

Isoxys auritus

Phylum Arthropoda

Geological Time: Early Cambrian (~525 million years ago)

Size: 40 mm

Fossil Site: Chengjiang Maotianshan Shales Chengjiang County, Qiongzhusi Section, Yu'anshan Member, Heilinpu Formation, Yunnan Province, China

Isoxys auritus This taxon is only rarely preserved with any soft parts evident and is known only from the Chengjiang Biota, but other members of the genus are found in deposits in Europe, Australia, and North America. Based upon the few known examples, it had a long segmented body, forwardly-projecting stalked eyes, and short antennae. The swimming appendages and most other soft parts only protruded slightly from their protective shell.

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