Asaphida

Ampyx gongwusuensis

Order Asaphida / Superfamily Trinucleoidea / Family Raphiophoridae

Darriwilian (Middle Ordovician)Inner Mongolia
Ampyx gongwusuensis — photo 1
Photo 1 · Jusun, Zhang Xingliang Complete dorsal exoskeleton (Inner Holotype OCGM-Inv.1464 (Inner Mongolia; Restoration (Lee et al., 2016) Mongolia; Wuhai Huashi Lieren) Lee et al., 2016) Nearly complete dorsal exoskeleton (Inner Mongolia; 52 Huashi) Complete dorsal exoskeleton (Inner Mongolia; Tuyang Tuseng Po) Nearly complete dorsal exoskeleton (Inner Mongolia; Dai Xu)
Ampyx gongwusuensis — photo 2
Photo 2 · Jusun, Zhang Xingliang Complete dorsal exoskeleton (Inner Holotype OCGM-Inv.1464 (Inner Mongolia; Restoration (Lee et al., 2016) Mongolia; Wuhai Huashi Lieren) Lee et al., 2016) Nearly complete dorsal exoskeleton (Inner Mongolia; 52 Huashi) Complete dorsal exoskeleton (Inner Mongolia; Tuyang Tuseng Po) Nearly complete dorsal exoskeleton (Inner Mongolia; Dai Xu)
Ampyx gongwusuensis — photo 3
Photo 3 · Jusun, Zhang Xingliang Complete dorsal exoskeleton (Inner Holotype OCGM-Inv.1464 (Inner Mongolia; Restoration (Lee et al., 2016) Mongolia; Wuhai Huashi Lieren) Lee et al., 2016) Nearly complete dorsal exoskeleton (Inner Mongolia; 52 Huashi) Complete dorsal exoskeleton (Inner Mongolia; Tuyang Tuseng Po) Nearly complete dorsal exoskeleton (Inner Mongolia; Dai Xu)
Ampyx gongwusuensis — photo 4
Photo 4 · Jusun, Zhang Xingliang Complete dorsal exoskeleton (Inner Holotype OCGM-Inv.1464 (Inner Mongolia; Restoration (Lee et al., 2016) Mongolia; Wuhai Huashi Lieren) Lee et al., 2016) Nearly complete dorsal exoskeleton (Inner Mongolia; 52 Huashi) Complete dorsal exoskeleton (Inner Mongolia; Tuyang Tuseng Po) Nearly complete dorsal exoskeleton (Inner Mongolia; Dai Xu)
Ampyx gongwusuensis — photo 5
Photo 5 · Jusun, Zhang Xingliang Complete dorsal exoskeleton (Inner Holotype OCGM-Inv.1464 (Inner Mongolia; Restoration (Lee et al., 2016) Mongolia; Wuhai Huashi Lieren) Lee et al., 2016) Nearly complete dorsal exoskeleton (Inner Mongolia; 52 Huashi) Complete dorsal exoskeleton (Inner Mongolia; Tuyang Tuseng Po) Nearly complete dorsal exoskeleton (Inner Mongolia; Dai Xu)
Ampyx gongwusuensis — photo 6
Photo 6 · Jusun, Zhang Xingliang Complete dorsal exoskeleton (Inner Holotype OCGM-Inv.1464 (Inner Mongolia; Restoration (Lee et al., 2016) Mongolia; Wuhai Huashi Lieren) Lee et al., 2016) Nearly complete dorsal exoskeleton (Inner Mongolia; 52 Huashi) Complete dorsal exoskeleton (Inner Mongolia; Tuyang Tuseng Po) Nearly complete dorsal exoskeleton (Inner Mongolia; Dai Xu)
Ampyx gongwusuensis — photo 7
Photo 7 · Jusun, Zhang Xingliang Complete dorsal exoskeleton (Inner Holotype OCGM-Inv.1464 (Inner Mongolia; Restoration (Lee et al., 2016) Mongolia; Wuhai Huashi Lieren) Lee et al., 2016) Nearly complete dorsal exoskeleton (Inner Mongolia; 52 Huashi) Complete dorsal exoskeleton (Inner Mongolia; Tuyang Tuseng Po) Nearly complete dorsal exoskeleton (Inner Mongolia; Dai Xu)
Ampyx gongwusuensis — photo 8
Photo 8 · Jusun, Zhang Xingliang Complete dorsal exoskeleton (Inner Holotype OCGM-Inv.1464 (Inner Mongolia; Restoration (Lee et al., 2016) Mongolia; Wuhai Huashi Lieren) Lee et al., 2016) Nearly complete dorsal exoskeleton (Inner Mongolia; 52 Huashi) Complete dorsal exoskeleton (Inner Mongolia; Tuyang Tuseng Po) Nearly complete dorsal exoskeleton (Inner Mongolia; Dai Xu)
Classification
Order Asaphida / Superfamily Trinucleoidea / Family Raphiophoridae
Genus
Ampyx Dalman, 1827
Genus author
Dalman J. W.
Genus etymology
ampyx, a headband, a round object
Species
A. gongwusuensis Lee, Lee, Woo & Zhang, 2016
Species author
Lee Seung-Bae, Lee Dong-Chan, Woo
Species etymology
Gongwusu, Gongwusu Town, Hainan District, Wuhai City, Inner Mongolia, near the locality
Age
Darriwilian (Middle Ordovician)
Distribution
Inner Mongolia
Diagnosis
Very similar to Abulbaspis ordosensis, the main difference being that the glabellar protuberance of this species is a pointed spine rather than a globular structure.
Remarks
Ampyx gongwusuensis and Abulbaspis ordosensis may be closely related or may represent sexual dimorphs.