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Dikelocephaliidae (disused)
Taxonomy
Dikelocephaliidae was named by Miller (1889). It is not extant.
It was corrected as Dikelocephalidae by Jell and Adrain (2002), Adrain (2011), Wernette et al. (2020).
It was assigned to Dikelocephalacea by Hughes (1994); to Asaphida by Jell and Adrain (2002); to Trilobita by Adrain (2011); and to Dikelocephaloidea by Wernette et al. (2020).
It was corrected as Dikelocephalidae by Jell and Adrain (2002), Adrain (2011), Wernette et al. (2020).
It was assigned to Dikelocephalacea by Hughes (1994); to Asaphida by Jell and Adrain (2002); to Trilobita by Adrain (2011); and to Dikelocephaloidea by Wernette et al. (2020).