Parvifuzia marsa Guo & Ren, 2011

Taxonomy

Cockroach

Kingdom: Animalia
Phylum: Arthropoda Latreille 1829
Class: Insecta Linnaeus 1758
Order: Blattida Latreille 1810
Family: Fuziidae Vršanský, Liang & Ren 2009
Genus: Parvifuzia
Species: Parvifuzia marsa
Author Citation Guo & Ren, 2011

Geological Time Scale

Eon: Phanerozoic
Era: Mesozoic
Period: Jurassic
Sub Period: None
Epoch: Middle
International Age: Callovian to Oxfordian

Stratigraphy

Jiulongshan Formation
Daohugou Bed

Provenance

Acquired by: Purchase/Trade

Dimensions

Length: 10 mm

Location

Daohugou (Village)
Ningcheng (County)
Inner Mongolia (Province)
China

• daohugou
• inner mongolia
• jurassic
• ningcheng
• Parvifuzia marsa

Comments

The age of the Daohugou strata has been notoriously difficult to determine, and a number of studies have produced conflicting results. Gao and Shubin 2012 reported an Argon-argon dating age of 164 ±4 million years ago (Middle to Late Jurassic, Bathonian to Oxfordian), this opinion is now widely accepted. 
Taxonomy according to Wei et al., 2012.

Diagnosis from Guo & Ren, 2011, p. 502: 'Pronotum quasi-circular, not very wide; forewing R slightly curved; M reaching to the anterior margin of the wing.'

Line drawing of a male from Guo & Ren, 2011, p. 502:

References:

Guo, Y. and Ren, D. (2011) A New Cockroach Genus of the Family Fuziidae from Northeastern China (Insecta: Blattida). Acta Geologica Sinica (English Edition) 85: 501-506. doi: 10.1111/j.1755-6724.2011.00418.x
Wei D. D., Liang J. H.  and Ren D. (2012) A new species of Fuziidae (Insecta, Blattida) from the Inner Mongolia, China. ZooKeys 217: 53–61.
Gao, K. -Q. and Shubin, N. H. (2012) Late Jurassic salamandroid from western Liaoning, China. Proceedings of the National Academy of Sciences. 109 (15): 5767–72.