Classification of Spencer 1922

Cl. Asteroidea de Blainville 1830 [sea star]
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G. †Baliactis Spencer 1922
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Baliactis ordovicus Spencer 1922
Baliactis wenlockensis Spencer 1922
G. †Taeniactis Spencer 1927
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Taeniactis wenlocki Spencer 1922
Fm. †Eoactinidae Spencer 1919
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G. †Eoactis Spencer 1914
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Eoactis simplex Spencer 1914
G. †Palasterina McCoy 1851
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Palasterina antiqua Hisinger 1837
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Invalid names: Palasterina bonneyi Gregory 1899 [synonym]
Palasterina follmanni Stürtz 1890
Palasterina primaeva Forbes 1848
Invalid names: Hisingeraster Stürtz 1899 [synonym], Lindstromaster Gregory 1899 [synonym], Pseudopalasterina Stürtz 1890 [synonym]
G. †Schuchertia Gregory 1899
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Schuchertia laxata Schuchert 1915
Schuchertia ordinaria Schuchert 1915
Schuchertia stellata Billings 1857
Schuchertia wenlocki Spencer 1922
Invalid names: Trentonaster Stürtz 1899 [objective synonym]