ammonites
Pteromixanum purbeckianum Handlirsch 1906 (winged insect)

Insecta - Dicondylia - Necrotauliidae

Alternative combinations: Mesotrichopteridium purbeckianum, Paratrichopteridium purbeckianum

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 Pteromixanum according to I. D. Sukatsheva and E. A. Jarzembowski 2001

Sister taxa: Pteromixanum inviolatum, Pteromixanum poxwellense, Pteromixanum ruderatum

Type specimen: NHM I 3968, a forewing (forewing missing base). Its type locality is Durlston Bay, Austen's beds 31 or 58, which is in a Berriasian lagoonal mudstone in the Durlston Formation of the United Kingdom.

Ecology:

Average measurements (in mm): forewing 4.80 x 1.80