Asaphida

Omeipsis huangi

Order Asaphida / Superfamily Cyclopygoidea / Family Taihungshaniidae

Floian (Early Ordovician)Guizhou, Sichuan
Omeipsis huangi — photo 1
Photo 1 · Holotype NIGP3448 (Guizhou; left: Sun Restoration (Lu Yanhao Yunchu 1931; right: Lu Yanhao et al. 1975) 1965) Literature specimen (Sichuan; Kobayashi Literature specimen (Sichuan; Li Shanji 1951) 1978)
Omeipsis huangi — photo 2
Photo 2 · Holotype NIGP3448 (Guizhou; left: Sun Restoration (Lu Yanhao Yunchu 1931; right: Lu Yanhao et al. 1975) 1965) Literature specimen (Sichuan; Kobayashi Literature specimen (Sichuan; Li Shanji 1951) 1978)
Omeipsis huangi — photo 3
Photo 3 · Holotype NIGP3448 (Guizhou; left: Sun Restoration (Lu Yanhao Yunchu 1931; right: Lu Yanhao et al. 1975) 1965) Literature specimen (Sichuan; Kobayashi Literature specimen (Sichuan; Li Shanji 1951) 1978)
Omeipsis huangi — photo 4
Photo 4 · Holotype NIGP3448 (Guizhou; left: Sun Restoration (Lu Yanhao Yunchu 1931; right: Lu Yanhao et al. 1975) 1965) Literature specimen (Sichuan; Kobayashi Literature specimen (Sichuan; Li Shanji 1951) 1978)
Omeipsis huangi — photo 5
Photo 5 · Holotype NIGP3448 (Guizhou; left: Sun Restoration (Lu Yanhao Yunchu 1931; right: Lu Yanhao et al. 1975) 1965) Literature specimen (Sichuan; Kobayashi Literature specimen (Sichuan; Li Shanji 1951) 1978)
Classification
Order Asaphida / Superfamily Cyclopygoidea / Family Taihungshaniidae
Genus
Omeipsis Kobayashi, 1951
Genus author
Kobayashi T.
Genus etymology
Omei, Mount Emei, Sichuan, one of the localities
Species
O. huangi (Sun, 1931)
Species author
Sun Yunchu
Species etymology
Huang, a surname, in honour of Mr. Huang Jiqing (T. K. Huang), the renowned Chinese geologist and palaeontologist who collected the specimens
Age
Floian (Early Ordovician)
Distribution
Guizhou, Sichuan
Synonyms
Acidaspis huangi
Diagnosis
Cephalon semicircular, transversely wide; glabella subcylindrical, slightly constricted anteriorly; librigenae large with long genal spines reaching the front of the pygidium. Thorax of 8 segments, axis convex and wide; pleural furrows distinct, pleural spines lengthening posteriorly. Pygidium subrectangular; posterior border wide and flat, bearing two pairs of posterior spines, the first pair long and the second extremely short.