Classification of the class Hyolithomorpha
Cl. †Hyolithomorpha
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G. †Calcitheca
G. †Dilites
G. †Eumorpholites
G. †Nervolites
G. †Ovalitheca
G. †Parahyolithes
Or. †Sulcavitida Qian 1989
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G. †Inflatatheca Qian et al. 2001
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†Inflatatheca campulla Qian et al. 2001
†Inflatatheca zhenbaensis Qian 1978
Fm. †Linevitidae Qian 1989
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Fm. †Parakorilithidae Qian 1989
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Fm. †Trapezovitidae Volkov 1975
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Or. †Toxeumorphorida
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G. †Macrotheca Waagen 1880
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†Macrotheca almgreeni Peel and Yochelson 1984
†Macrotheca wynnei Waagen 1880
Fm. †Toxeumorphoridae Shimansky 1962
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G. †Pseudotoxeuma Shimanskiy 1963
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†Pseudotoxeuma digitulus Shimanskiy 1963
†Pseudotoxeuma magnificum Shimanskiy 1963