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Trilobita - Asaphida - Asaphidae

Nileoides was named by Raymond (1920) [Sepkoski's age data: O Llde-u Sepkoski's reference number: 795]. It is not extant. Its type is Nileus perkinsi.

It was assigned to Asaphida by Sepkoski (2002); and to Asaphidae by Jell and Adrain (2002).

Synonymy list
YearName and author
1920Nileoides Raymond
2002Nileoides Jell and Adrain p. 411
2002Nileoides Sepkoski, Jr.

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EubilateriaAx 1987
phylumArthropodaLatreille 1829
classTrilobitaWalch 1771
orderAsaphidaSalter 1864
superfamilyAsaphoideaSalter 1864
familyAsaphidaeBurmeister 1843
genusNileoidesRaymond 1920

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.

No diagnoses are available
No measurements are available
Composition: low Mg calcitec
Composition 2: chitinc
Entire body: yesf
Adult length: 10 to < 100f
Adult width: 10 to < 100f
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: fast-movingo
Life habit: low-level epifaunalo
Diet: deposit feedero
Vision: well-developedf
Created: 2009-06-11 14:38:06
Modified: 2009-12-14 00:45:08
Source: f = family, o = order, c = class
References: Aberhan et al. 2004, Hendy 2009, Hendy et al. 2009

Age range: base of the Chazyan to the top of the Whiterockian or 468.10000 to 457.50000 Ma

Collections (5 total)

Time interval Ma Country or state Original ID and collection number
Whiterockian471.8 - 457.5USA (Vermont) N. perkinsi (103289)
Whiterockian471.8 - 457.5USA (New York) N. perkinsi (103280)
Chazyan - Caradoc468.1 - 449.5Canada (Northwest Territories) N. sp. (25308 25309 25310)