Classification of Umbgrove 1925

G. †Metopaster Sladen 1893
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†Metopaster tumidus Spencer 1913
G. †Ophryaster Spencer 1913
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†Ophryaster maastrichtensis Umbgrove 1925
G. †Lophidiaster Spencer 1913
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†Lophidiaster pygmaeus Spencer 1913
G. †Tholaster Spencer 1913
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†Tholaster argus Spencer 1907