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Dalatias licha Isistius brasiliensis Squaliolus aliae Euprotomicrus bispinatus Etmopterus molleri Etmopterus sheikoi Etmopterus splendidus Etmopterus gracilispinis Etmopterus spinax Centroscyllium fabricii Aculeola nigra Trigonognathus kabeyai Oxynotus paradoxus Scymnodon ringens Centroscymnus owstoni Centroselachus crepidater Zameus squamulosus Somniosus microcephalus Centrophorus moluccensis Deania sp. JM-2001 Squalus acanthias Cirrhigaleus asper Pliotrema warreni Pristiophorus japonicus Squatina nebulosa Echinorhinus brucus Hexanchus griseus
0 50 100 150 201 Time (MYA)
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