Menaspiformes

Menaspiformes are an extinct order of holocephalans known from the Carboniferous and Permian periods,^[1] with a possible member, Listracanthus,^[2] known from the Early Triassic. Members of the order are believed to be durophagous benthic carnivores.^[1][3] While historically menaspiforms were classified under Chimaeriformes,^[2] they are today recognized as a separate order.^[3]

Menaspiformes Temporal range: Carboniferous–Permian PreꞒ Ꞓ O S D C P T J K Pg N Possible member Listracanthus survives until the Olenekian.
Life reconstructions of Menaspis and Deltoptychius
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Chondrichthyes
Subclass:	Holocephali
Order:	†Menaspiformes Nelson, 2006
Type genus
Menaspis Edward, 1848
Families and genera
†Deltoptychiidae †Menaspidae †Traquairiidae †Listracanthus?