ammonites
Syscioblatta exsensa Scudder 1895 (cockroach)

Insecta - Blattodea - Spiloblattinidae

Alternative combination: Etoblattina exsensa

Full reference: S. H. Scudder. 1895. Revision of the American fossil cockroaches with descriptions of new forms. Bulletin of the United States Geological Survey 124:1-176

Belongs to Syscioblatta according to A. Handlirsch 1906

Sister taxa: Syscioblatta anomala, Syscioblatta euryptera, Syscioblatta gracilenta, Syscioblatta kaierkanensis, Syscioblatta minor, Syscioblatta misera, Syscioblatta obscura, Syscioblatta steubenvilleana, Syscioblatta teberdensis

Type specimen: Coll Huston 161, a tegmen. Its type locality is Willis Creek near Steubenville, which is in a Stephanian terrestrial shale in the Conemaugh Formation of Ohio.

Ecology:

Average measurements (in mm): tegmen 26.2 x 10.7