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Sidneyia

Taxonomy
Sidneyia was named by Walcott (1911) [Sepkoski's age data: Cm mMid-u Cm uMid-l Sepkoski's reference number: 883].

It was assigned to Limulavida by Sepkoski (2002); to Arthropoda by Briggs et al. (1994) and Bambach et al. (2007); and to Arachnomorpha by Briggs et al. (2008).

Synonymy list
YearName and author
1911Sidneyia Walcott
1994Sidneyia Briggs et al. p. 220
2002Sidneyia Sepkoski, Jr.
2007Sidneyia Bambach et al. p. S78
2008Sidneyia Briggs et al. p. 246

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
RankNameAuthor
Panarthropoda
phylumArthropodaLatreille 1829
subphylumArachnomorphaLameere 1890
genusSidneyiaWalcott 1911

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
No diagnoses are available