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Life-forms

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Classis: Chondrichthyes
Subclassis: Elasmobranchii
Superordo: Selachimorpha
Ordo: Squaliformes

Familia: Squalidae
Genus: †Protosqualus
Species: †P. albertsi – †P. argentinensis – †P. barringtonensis – †P. glickmani – †P. pachyrhiza – †P. sigei
Name

†Protosqualus Cappetta, 1977

Type species: †Protosqualus sigei Cappetta, 1977

References

Cappetta, H. 1977. Sélaciens nouveaux de l'Albien supérieur de Wissant (Pas-de-Calais). Géobios, 10(6): 967–973, 1 pl. DOI: 10.1016/S0016-6995(77)80085-5Reference page.

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