ammonites
Megakhosarella regressa Sharov 1961 (rock crawler)

Insecta - Notoptera - Megakhosaridae

Full reference: A. G. Sharov. 1961. Order Protoblattodea, Paraplecoptera, Plecoptera, in Paleozoiskie nasekomye kuznetskogo basseina [Paleozoic insects of the Kuznetsk basin]. Trudy Paleontologicheskogo Instituta 85:157-234

Belongs to Megakhosarella according to S. Y. Storozhenko 1993

Sister taxon: Megakhosarella prisca

Type specimen: PIN 676/126, a forewing. Its type locality is Suriekova I, ditch 6 (PIN collection 676), which is in a Wordian terrestrial siliciclastic in the Kazankovo-Markinskaya Formation of the Russian Federation.

Ecology:

Average measurements (in mm): forewing 17.5 x 5.2