A family classification of extinct primitive sharks that includes cladoselache and related species.
From 'Cladoselache' + Latin '-idae' (biological family suffix). Scientific naming convention created in paleontology to group related extinct organisms.
The '-idae' suffix is like nature's filing system—zoologists add it to creature names to say 'these animals are family,' and Cladoselachidae represents one of the oldest shark families known.
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