Duplapex

Duplapex is an extinct genus of bivalved arthropod known from the Cambrian Stage 3 aged Qingjiang biota of Hubei, China, with a single species. D. anima. It is thought to be a close relative of Tuzoia, but unlike it, the reticulated (net patterned) bivalved carapace was interpreted to have opened at a wide angle. The carapace had a pair of spines projecting posteriorly.^[1] In its original description, it was suggested to have eyes on annulated stalks, but later research suggested that these may have been preservational artifacts instead.^[2]

Duplapex Temporal range: Cambrian Stage 3 PreꞒ Ꞓ O S D C P T J K Pg N
Life restoration of Duplapex, based on the original description
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Order:	†Hymenocarina
Family:	†Tuzoiidae
Genus:	†Duplapex Ma et al. 2021
Species:	†D. anima
Binomial name
†Duplapex anima Ma et al. 2021