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Taxonomy
Helokybe was named by Thomas and Narbonne (1979). Its type is Helokybe spio.
It was assigned to Dechenellinae by Thomas and Narbonne (1979); to Warburgellinae by Zhou et al. (2000); and to Proetidae by Jell and Adrain (2002).
It was assigned to Dechenellinae by Thomas and Narbonne (1979); to Warburgellinae by Zhou et al. (2000); and to Proetidae by Jell and Adrain (2002).
Species
H. spio (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1979 | Helokybe Thomas and Narbonne p. 5 |
| 2000 | Helokybe Zhou et al. pp. 470 - 471 |
| 2002 | Helokybe Jell and Adrain p. 383 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. Thomas and G. Narbonne 1979 | Dechenelline with preglabellar field, the median part of which is inflated and transgresses onto the anterior border. Three pairs of lateral glabellar furrows, 2S and 3S very faint. Thorax of 9 segments. Pygidium subparabolic in outline, without distinct border: axis with 7-9 axial rings and 6 pairs of pleural ribs. Interpleural furrows weakly impressed. |