Palaeospinax

Palaeospinax is an extinct genus of synechodontiform cartilaginous fish. Although several species have been described, the genus is considered nomen dubium because the type-specimen of the type species, Palaeospinax priscus, from the Late Triassic-Early Jurassic of Europe lacks appropriate diagnostic characters to define the genus.^[5]

Palaeospinax Temporal range: Late Triassic–Early Jurassic PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Chondrichthyes
Subclass:	Elasmobranchii
Order:	†Synechodontiformes
Family:	†Palaeospinacidae
Genus:	†Palaeospinax Egerton, 1872[1]
Type species
†Paleospinax priscus Agassiz 1843[2]
Species[3]
†Palaeospinax priscus
Synonyms[4]
†Paleospinax †Synechodus Woodward, 1888

Other species originally described as Synechodus were transferred to the genus Palidiplospinax.