From Wikipedia, the free encyclopedia
Jump to: navigation, search
For other uses, see Mizia (town).
Temporal range: Emsian
Mizia longhuaensis.jpg
M. longhuaensis
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Class: Placodermi
Order: Antiarchi
Family: Yunnanolepididae
Genus: Mizia
Type species
Mizia longhuaensis
Zhu, 1996
  • M. longhuaensis Zhu, 1996
  • M. parvus (Zhang Guorui 1978)

Mizia is a genus of primitive antiarch placoderm found in Emsian-aged marine strata of Early Devonian China.


M. longhuaensis[edit]

The only known specimen is of a mostly complete thoracic armor from the Xujiachong Formation in Qujing, Yunnan.[1] The armor is very similar to that of Yunnanolepis, but is distinguished by a unique floral pattern of raised ridges and grooves radiating from a point at the center of the dorsal shield of the thoracic armor. A similar pattern is seen on the thoracic armor of the Vietnamese Vukhuclepis. M. longhuaensis' armor is further ornamented with small tubercles.

M. parvus[edit]

Originally described as Yunnanolepis parvus. Min Zhu reexamined specimens of Y. parvus, and found the armor, in addition to being rather different from the armor seen in Yunnanolepis, to be more anatomically similar to the holotype of M. longhuaensis, and placed it into Mizia.[1]


  1. ^ a b Min, Zhu. (1996). "The Phylogeny of Antiarcha (Placodermi, Pisces), with the Description of Early Devonian Antiarchs from Qujing, Yunnan, China." (PDF). Bulletin du Muséum national d'Histoire naturelle. 18: 233–347.