ammonites
Protopsyllidium sinuatum Davis 1942 (true bug)

Insecta - Hemiptera - Protopsyllidiidae

Full reference: C. Davis. 1942. Hemiptera and Copeognatha from the Upper Permian of New South Wales. Proceedings of the Linnean Society of New South Wales 67:111-122

Belongs to Protopsyllidium according to E. E. Becker-Migdisova 1985

Sister taxa: Protopsyllidium australe, Protopsyllidium latipenne, Protopsyllidium lynae, Protopsyllidium setosum

Type specimen: AM F39801, a forewing. Its type locality is Warner's Bay, Belmont (AMF coll), which is in a Changhsingian pond chert in the Croudace Bay Formation of Australia.

Ecology:

Average measurements (in mm): forewing 2.93 x 1.20, hindwing 2.12 x 0.81, tegmen length 4.50