ammonites
Orthomylacris truncatula Handlirsch 1906 (cockroach)

Insecta - Blattodea - Mylacridae

Full reference: A. Handlirsch. 1906. Die Fossilen Insekten und die Phylogenie der Rezenten Formen, parts I-IV. Ein Handbuch fur Palaontologen und Zoologen 1-640

Belongs to Orthomylacris according to A. Handlirsch 1906

Sister taxa: Orthomylacris alutacea, Orthomylacris analis, Orthomylacris antiqua, Orthomylacris berryi, Orthomylacris contorta, Orthomylacris elongata, Orthomylacris franklini, Orthomylacris heeri, Orthomylacris lucifuga, Orthomylacris mansfieldi, Orthomylacris pennsylvanica, Orthomylacris pluteus, Orthomylacris recta, Orthomylacris rugulosa

Type specimen: USNM 38773, a tegmen. Its type locality is Port Griffith railway cut, near Pittston, which is in a Westphalian C terrestrial siliciclastic in Pennsylvania.

Ecology:

Average measurements (in mm): tegmen length 23.0