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327:. The family Parastylonuridae as defined by Lamsdell et al. (2010) is paraphyletic, and knowingly made so, but was retained as it is due to the lack of complete material of either genus included within it,
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Unlike the close relatives in the
Stylonuridae, there are no adaptations towards sweep-feeding within the Parastylonuridae. They retain primitive
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with a posterior second order opisthosomal differentiation and with spiniferous appendages II-IV akin to the genus
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commonly known as "sea scorpions". The family is one of two families contained in the superfamily
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307:-like prosomal appendages II-IV unsuited for such a lifestyle, and they were likely
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James C. Lamsdell, Simon J. Braddy & O. Erik Tetlie (2010).
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and non-spiniferous appendages V-VI akin to the genus
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555:. You can help Knowledge by
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311:instead of sweep-feeders.
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119:Scientific classification
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551:-related article is a
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323:within the
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253:chelicerate
249:eurypterids
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166:Chelicerata
162:Subphylum:
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376:References
309:scavengers
256:arthropods
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198:Family:
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343:Family
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547:This
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333:and
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