1	Fore-/hind wing with pterostigmal crossvein	2
–	Fore-/hind wing without pterostigmal crossvein (Mesoraphidiidae)	4
2	Fore-/hind wing with sparse or moderate crossvenation; at most with two radial cells, three medial cells, and three discoidal cells posterior to MP; often with no closed subradial cells (i.e., cells between Rs branches) (Mesoraphidiidae)	3
–	Fore-/hind wing with relatively rich crossvenation; with at least three radial cells, and numerous subradial, medial, and discoidal cells posterior to MP (Baissopteridae)	Baissoptera? cretaceoelectra sp. n.
3	Fore-/hind wing with a single pterostigmal crossvein; distalmost r-rs crossvein meeting R within pterostigma, Rs (proximally) forking before distalmost r-rs; rs-ma crossvein meeting MA before its distalmost fork	Necroraphidia arcuata gen. et sp. n.
–	Hind wing with two pterostigmal crossveins; distalmost r-rs crossvein meeting R beyond pterostigma, Rs forking at r-rs crossvein; rs-ma crossvein meeting MA after its distalmost fork	Styporaphidia? hispanica sp. n.
4	Forewing with four c-sc crossveins; apicalmost branch of CuA forked near wing margin; M-CuA separation between 1cua-cup and 2cua-cup crossveins (closer to latter)	Cantabroraphidia marcanoi Pérez-de la Fuente et al., 2010
–	Forewing with six c-sc crossveins; apicalmost branch of CuA unforked; M-CuA separation at the 1cua-cup crossvein	Amarantoraphidia ventolina gen. et sp. n.