Ptychopariida

Bailiella lantenoisi

Order Ptychopariida / Suborder Ptychopariina / Superfamily Ptychoparioidea / Family Conocoryphidae

Wuliuan (Miaolingian, Cambrian)Shandong, Henan, Liaoning and other parts of North China; Vietnam

Bailiella lantenoisi — photo 1 — Photo 1 · Type specimen figures (C is the holotype; Vietnam; Jell et al., Complete dorsal exoskeleton Complete dorsal exoskeleton 1997) (Shandong; Guodong) (Shandong; Stam Lee) Complete dorsal exoskeleton (Shandong; now housed at Complete dorsal exoskeleton Meraspid stage 11 (Henan; Shandong University of Science and Technology) (Henan; Y.W) Feng)

Bailiella lantenoisi — photo 2 — Photo 2 · Type specimen figures (C is the holotype; Vietnam; Jell et al., Complete dorsal exoskeleton Complete dorsal exoskeleton 1997) (Shandong; Guodong) (Shandong; Stam Lee) Complete dorsal exoskeleton (Shandong; now housed at Complete dorsal exoskeleton Meraspid stage 11 (Henan; Shandong University of Science and Technology) (Henan; Y.W) Feng)

Bailiella lantenoisi — photo 3 — Photo 3 · Type specimen figures (C is the holotype; Vietnam; Jell et al., Complete dorsal exoskeleton Complete dorsal exoskeleton 1997) (Shandong; Guodong) (Shandong; Stam Lee) Complete dorsal exoskeleton (Shandong; now housed at Complete dorsal exoskeleton Meraspid stage 11 (Henan; Shandong University of Science and Technology) (Henan; Y.W) Feng)

Bailiella lantenoisi — photo 4 — Photo 4 · Type specimen figures (C is the holotype; Vietnam; Jell et al., Complete dorsal exoskeleton Complete dorsal exoskeleton 1997) (Shandong; Guodong) (Shandong; Stam Lee) Complete dorsal exoskeleton (Shandong; now housed at Complete dorsal exoskeleton Meraspid stage 11 (Henan; Shandong University of Science and Technology) (Henan; Y.W) Feng)

Bailiella lantenoisi — photo 5 — Photo 5 · Type specimen figures (C is the holotype; Vietnam; Jell et al., Complete dorsal exoskeleton Complete dorsal exoskeleton 1997) (Shandong; Guodong) (Shandong; Stam Lee) Complete dorsal exoskeleton (Shandong; now housed at Complete dorsal exoskeleton Meraspid stage 11 (Henan; Shandong University of Science and Technology) (Henan; Y.W) Feng)

Bailiella lantenoisi — photo 6 — Photo 6 · Type specimen figures (C is the holotype; Vietnam; Jell et al., Complete dorsal exoskeleton Complete dorsal exoskeleton 1997) (Shandong; Guodong) (Shandong; Stam Lee) Complete dorsal exoskeleton (Shandong; now housed at Complete dorsal exoskeleton Meraspid stage 11 (Henan; Shandong University of Science and Technology) (Henan; Y.W) Feng)

Classification

Order Ptychopariida / Suborder Ptychopariina / Superfamily Ptychoparioidea / Family Conocoryphidae

Genus

Bailiella Matthew, 1885

Genus author

Matthew G. F.

Genus etymology

Bailey, a surname; -ella, a diminutive adjectival suffix

Species

B. lantenoisi (Mansuy, 1916)

Species author

Mansuy H.

Species etymology

lantenois, a surname, Lantenois

Age

Wuliuan (Miaolingian, Cambrian)

Distribution

Shandong, Henan, Liaoning and other parts of North China; Vietnam

Synonyms

Conocoryphe lantenoisi; C. frangtengensis; C. sejuncta; C. reedi; Bailiella ulrichi; B. frangtengensis; B. sejuncta; B. aff. orientalis; B. lata B. lata; B. elegans; B. binodosa; B. hebeiensis; B. transversa; B. pingshanensis; B. wuanensis; B. wutaishanensis; B. huoshanensis; Holocephalina wadiai; H. wakhalooi

Diagnosis

Cephalon semicircular; glabella conical with rounded front, not reaching the anterior border, with 3 pairs of backward-inclined glabellar furrows; dorsal furrows distinct; eyes absent, eye ridges weak; fixigenae wide; librigenae extremely narrow and small with genal spines; facial sutures on the cephalic margin; occipital furrow distinct. Thorax of 14 segments; axis convex, narrower than pleurae; pleural furrows distinct, pleural spines short. Pygidium small; axis divided into 3 rings and a terminal lobe with rounded end; pleural furrows shallow but distinct; border wider anterolaterally, narrowing toward the posterior middle.