Classification of the class Aculifera
Cl. Aculifera Blumrich 1891
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Fm. †Halkieriidae Poulsen 1967
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Subfm. †Halkieriinae Poulson 1967
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G. †Eohalobia Luo et al. 1982
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Invalid names: Meishucunchiton Yü 1987 [synonym], Parapunctella Luo and Jiang 1982 [synonym], Zeugites Qian et al. 1979 [synonym]
G. †Halkieria Poulsen 1967
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†Halkieria amorphe Meshkova 1974
†Halkieria curvativa Missarzhevsky and Mambetov 1981
†Halkieria denlanatiformis Missarzhevsky and Mambetov 1981
†Halkieria evangelista Conway Morris and Peel 1995
†Halkieria mira Qian and Xiao 1984
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Invalid names: Sachites glossoides Gao et al. 1985 [synonym], Sachites liratus Gao et al. 1985 [synonym]
†Halkieria obliqua Poulsen 1967
†Halkieria sacciformis Meshkova 1969
†Halkieria sthenobasis Luo and Jiang 1982
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Invalid names: Halkieria toruliformis Wang 1994 [synonym]
†Halkieria stonei Landing et al. 1989
†Halkieria trianguliformis Missarzhevsky and Mambetov 1981
†Halkieria undulatus Wang 1994
†Halkieria wangi Parkhaev and Demidenko 2010
Invalid names: Acrosquama Qian and Xiao 1984 [synonym], Acuminachites Qian and Yin 1984 [synonym], Dactyosachites He 1981 [synonym], Microsachites He 1981 [synonym]
G. †Ocruranus Liu 1979
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†Ocruranus finial Liu 1979
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Invalid names: Chengjiangoconus trilophodes He and Yang 1982 [synonym], Dengyingoconus trianguliformis Xing et al. 1984 [synonym], Liorichita sublaevis Liu 1987 [synonym], Ocruranus diandongensis Luo et al. 1982 [synonym], Ocruranus gryphus Liu 1987 [synonym], Ocruranus regularis Liu 1987 [synonym], Parascenella typica Chen and Xiong 1984 [synonym], Pileconus veloides Jiang 1980 [synonym], Postestephaconus tentes Jiang 1980 [synonym], Stephaconus subpentaedrus Jiang 1980 [synonym], Stoliconus usitatus Jiang 1980 [synonym], Stoliconus vemeres Jiang 1980 [synonym]
†Ocruranus kangerluk Peel 2021
†Ocruranus modestus Yü 1987
†Ocruranus septentrionalis Peel and Skovsted 2005
†Ocruranus trulliformis Jiang 1980
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Invalid names: Ginella yichangensis Chen and Zhang 1980 [synonym]
Invalid names: Chengjiangoconus He and Yang 1982 [synonym], Cremnodinotus Liu 1987 [synonym], Dengyingoconus [synonym], Hanshuiella Yue and Xing 1984 [synonym], Jiangiconus Starobogatov and Moskalev 1987 [synonym], Liorichita Liu 1987 [synonym], Parascenella Chen and Xiong 1984 [synonym], Pileconus [synonym], Postephaconus Jiang 1980 [synonym], Postestephaconus Jiang 1980 [synonym], Runnegarochiton Yü 1987 [synonym], Stephaconus Jiang 1980 [synonym], Stoliconus Jiang 1980 [synonym], Yuanjiapingella Yue 1984 [synonym]
G. †Sinosachites He 1980
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†Sinosachites flabelliformis He 1980
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Invalid names: Sinosachites triangularis Yin and He 1980 [synonym]
Invalid names: Thambetolepis [synonym]