Synonyms: Scymnodon aff. obscurus-f, Scymnodon cf. squamulosus-f, Scymnodon squamulosus-f, Zameus cf. squamulosus-f
Original description species: (Günther, 1877)
Genus: Zameus Jordan & Fowler, 1903
Family: Somniosidae Jordan, 1888
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Janvier & Suarez-Riglos, 1986
Genus: Zamponiopteron Janvier & Suárez-Riglos, 1986
Family: incert. fam.
Subclass: Holocephali

Original description species: Janvier & Suarez-Riglos, 1986
Genus: Zamponiopteron Janvier & Suárez-Riglos, 1986
Family: incert. fam.
Subclass: Holocephali

Synonyms: Zamponiopteron cf. triangularis
Original description species: Janvier & Suarez-Riglos, 1986
Genus: Zamponiopteron Janvier & Suárez-Riglos, 1986
Family: incert. fam.
Subclass: Holocephali

Original description species: Signeux, 1961
Genus: Zapteryx Jordan, & Gilbert 1880
Family: Trygonorrhinidae Last, Séret & Naylor, 2016
Order: Rhinopristiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Mendiola, 1995
Genus: Zygzabatis Mendiola, 1995
Family: Rhinopteridae Jordan & Evermann, 1896
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii