Asaphida

Symphysurus klimoliensis

Order Asaphida / Superfamily Cyclopygoidea / Family Nileidae

Darriwilian (Middle Ordovician)Inner Mongolia

Symphysurus klimoliensis — photo 1 — Photo 1 · Type specimen (Inner Mongolia; Lu Restoration (Lee et al., 2016) Complete dorsal exoskeleton (Inner Mongolia; Yanhao et al. 1976) Haiku Shilan De Chongchong) Literature specimen (Inner Mongolia; Lee et Complete dorsal exoskeleton (Inner Mongolia; Complete dorsal exoskeleton (Inner Haiku Shilan De Chongchong) al., 2016) Mongolia; Pengcheng Jianke)

Symphysurus klimoliensis — photo 2 — Photo 2 · Type specimen (Inner Mongolia; Lu Restoration (Lee et al., 2016) Complete dorsal exoskeleton (Inner Mongolia; Yanhao et al. 1976) Haiku Shilan De Chongchong) Literature specimen (Inner Mongolia; Lee et Complete dorsal exoskeleton (Inner Mongolia; Complete dorsal exoskeleton (Inner Haiku Shilan De Chongchong) al., 2016) Mongolia; Pengcheng Jianke)

Symphysurus klimoliensis — photo 3 — Photo 3 · Type specimen (Inner Mongolia; Lu Restoration (Lee et al., 2016) Complete dorsal exoskeleton (Inner Mongolia; Yanhao et al. 1976) Haiku Shilan De Chongchong) Literature specimen (Inner Mongolia; Lee et Complete dorsal exoskeleton (Inner Mongolia; Complete dorsal exoskeleton (Inner Haiku Shilan De Chongchong) al., 2016) Mongolia; Pengcheng Jianke)

Symphysurus klimoliensis — photo 4 — Photo 4 · Type specimen (Inner Mongolia; Lu Restoration (Lee et al., 2016) Complete dorsal exoskeleton (Inner Mongolia; Yanhao et al. 1976) Haiku Shilan De Chongchong) Literature specimen (Inner Mongolia; Lee et Complete dorsal exoskeleton (Inner Mongolia; Complete dorsal exoskeleton (Inner Haiku Shilan De Chongchong) al., 2016) Mongolia; Pengcheng Jianke)

Symphysurus klimoliensis — photo 5 — Photo 5 · Type specimen (Inner Mongolia; Lu Restoration (Lee et al., 2016) Complete dorsal exoskeleton (Inner Mongolia; Yanhao et al. 1976) Haiku Shilan De Chongchong) Literature specimen (Inner Mongolia; Lee et Complete dorsal exoskeleton (Inner Mongolia; Complete dorsal exoskeleton (Inner Haiku Shilan De Chongchong) al., 2016) Mongolia; Pengcheng Jianke)

Symphysurus klimoliensis — photo 6 — Photo 6 · Type specimen (Inner Mongolia; Lu Restoration (Lee et al., 2016) Complete dorsal exoskeleton (Inner Mongolia; Yanhao et al. 1976) Haiku Shilan De Chongchong) Literature specimen (Inner Mongolia; Lee et Complete dorsal exoskeleton (Inner Mongolia; Complete dorsal exoskeleton (Inner Haiku Shilan De Chongchong) al., 2016) Mongolia; Pengcheng Jianke)

Classification

Order Asaphida / Superfamily Cyclopygoidea / Family Nileidae

Genus

Symphysurus Goldfuss, 1843

Genus author

Goldfuss A.

Genus etymology

ymphy-, Greek, glued together

Species

S. klimoliensis (Lu in Lu et al., 1976)

Species author

Lu Yanhao

Species etymology

Klimoli, Klimoli, south of Lashizhong Temple in the Zhuozishan area, Inner Mongolia

Age

Darriwilian (Middle Ordovician)

Distribution

Inner Mongolia

Synonyms

Nileus klimoliensis

Diagnosis

Compared with Symphysurus kientehsiensis, the cranidium is more strongly constricted medially, the librigenae are wider, and the segmentation of the pygidial axis is more indistinct.