Guizhouniscus microlepidus LIU, 2003

By oilshale (edited)

• March 19, 2017

Taxonomy

Kingdom: Animalia
Phylum: Chordata Haeckel 1847
Class: Actinopteri Cope 1871
Order: Palaeonisciformes Hay 1902
Family: Palaeoniscidae Vogt 1852
Genus: Guizhouniscus
Species: Guizhouniscus microlepidus
Author Citation LIU et al, 2003

Geological Time Scale

Eon: Phanerozoic
Era: Mesozoic
Period: Triassic
Sub Period: None
Epoch: Middle
International Age: Ladinian (late)

Stratigraphy

Falang Formation
Zhuganpo Member

Provenance

Acquired by: Purchase/Trade

Dimensions

Length: 27 cm

Location

Dingxiao 顶效 (Village)
Xingyi 兴义 (Town)
Guizhou (Province)
China

• china
• falang formation
• guizhou
• guizhouniscus
• tff-oilshale- ch1243
• triassic
• xingyi

Comments

Taxonomy according to Mindat.org
Diagnosis from Liu et al. 2003, p 356: "Fishes of rather large in size and slenderly fusiform in shape. Maxillary and mandible of Palaeoniscid type. Gape very long , with acutely conical teeth on mouth borders. Ventral fin very small and placed between pectoral and anal fins. Dorsal and anal fins rather large , latter larger and longer than former, and rays very numerous. Origin of dorsal fin slightly in front of that of anal. Fulcra developed. Tail heterocercal. Caudal fin equilobate and strongly forked. Ganoid scales very small and rhombic. Transverse rows of scales on trunk very numerous in number. Scales on anterior trunk superficially smooth , with comb-shaped denticles on posterior margins; those on middle and posterior parts of trunk bearing superficially markably crowded striae rostrocaudally."

Identified by oilshale using Liu et al 2003.

References:

Liu et al. (2003) NEW DISCOVERED FISHES FROM KEICHOUSAURUS BEARING HORIZON OF LATE TRIASSIC IN XINGYI OF GUIZHOU. Acta Palaeontologica Sinica , 42(3) :346 - 366.