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Protospinacidae
Taxonomy
Protospinacidae was named by Woodward (1919). Its type is Protospinax.
It was assigned to Squaliformes by Thies (1983); to Hypnosqualea by Underwood (2002), Delsate (2003) and Underwood and Ward (2004); and to Protospinaciformes by Underwood (2006).
It was assigned to Squaliformes by Thies (1983); to Hypnosqualea by Underwood (2002), Delsate (2003) and Underwood and Ward (2004); and to Protospinaciformes by Underwood (2006).
Subtaxa
Breviacanthus, Protospinax (type genus)
Synonymy list
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
Fm. †Protospinacidae Woodward 1919
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G. †Protospinax Woodward 1919
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†Protospinax annectans Woodward 1919
†Protospinax bilobatus Underwood and Ward 2004
†Protospinax carvalhoi Underwood and Ward 2004
†Protospinax lochensteinensis Thies 1983
†Protospinax magnus Underwood and Ward 2004
†Protospinax planus Underwood 2002
Diagnosis
No diagnoses are available