Classification of Krzemiński et al. 2010

Subph. Chelicerata Heymons 1901
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Cl. Xiphosura Latreille 1802
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Subor. †Synziphosurina Packard 1886
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Fm. †Bunodidae Packard 1886
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G. †Pasternakevia Selden and Drygant 1987
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†Pasternakevia podolica Selden and Drygant 1987
Or. Xiphosurida Latreille 1802
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G. Limulus Muller 1785
G. Tachypleus Leach 1819