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Proterocidaridae
Taxonomy
Proterocidaridae was named by Smith (1984). Its type is Proterocidaris.
It was assigned to Palaechinoidea by Hagdorn (2018); and to Echinoidea by Smith (1984), Thompson and Ewin (2018).
It was assigned to Palaechinoidea by Hagdorn (2018); and to Echinoidea by Smith (1984), Thompson and Ewin (2018).
Subtaxa