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Helmetia

Taxonomy
Helmetia was named by Walcott (1918) [Sepkoski's age data: Cm mMid-u]. It is not extant.

It was assigned to Arthropoda by Briggs et al. (1994); to Merostomoidea by Sepkoski (2002); and to Conciliterga by Paterson et al. (2012) and Lerosey-Aubril et al. (2017).

Species lacking formal opinion data

Synonymy list
YearName and author
1918Helmetia Walcott
1994Helmetia Briggs et al. p. 220
2002Helmetia Sepkoski
2012Helmetia Paterson et al.
2017Helmetia Lerosey-Aubril et al. p. 8 fig. 6

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
Panarthropoda
RankNameAuthor
phylumArthropodaLatreille 1829
Life
subphylumArtiopoda(Hou and Bergstrom)
subclassConcilitergaHou and Bergström 1997
genusHelmetiaWalcott 1918

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.

G. †Helmetia Walcott 1918
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Diagnosis
No diagnoses are available