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Nileus planiceps

Artiopoda - Asaphida - Nileidae

Taxonomy
Nileus planiceps was named by Nielsen (1995). Its type specimen is MGUH 22.889 (S 785), a cephalon/head (cranidium), and it is a 3D body fossil.

Synonymy list
YearName and author
1995Nileus planiceps Nielsen pp. 284-287 figs. 206-207

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
EcdysozoaAguinaldo et al. 1997
Panarthropoda
phylumArthropodaGravenhorst 1843
classArtiopodaHou and Bergstrom
RankNameAuthor
classTrilobitaWalch 1771
subclassLibristoma
orderAsaphidaSalter 1864
superfamilyCyclopygoideaRaymond 1925
familyNileidaeAngelin 1854
genusNileusDalman 1827
speciesplaniceps

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.

Nileus planiceps Nielsen 1995
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Diagnosis
ReferenceDiagnosis
A. T. Nielsen 1995Cranidium of low convexity (both ways), anterior margin evenly rounded and with tlattened rim; anterolateral expansion of glabella strong (tr. ) , but short (exsag. ) ; axial furrows well-impressed; mesial glabellar tuberde situated relatively far back. Pygidium covered, axis indusive, with extremely densely spaeed, very fine terrace lines; axis slightly raised, moderately tapering; border very narrow and steep, ill-defined. Pygidial doublure show more than 25 terrace lines.
Measurements
No measurements are available
Composition: low Mg calcitec
Composition 2: chitinc
Entire body: yesg
Adult length: 10 to < 100g
Adult width: 10 to < 100g
Spines: minorg
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: fast-movingo
Life habit: low-level epifaunalo
Diet: carnivorec
Vision: well-developedf
Created: 2009-06-08 12:33:48
Modified: 2009-06-08 14:34:56
Source: g = genus, f = family, o = order, c = class
References: Hendy 2009, Aberhan et al. 2004, Hendy et al. 2009

Age range: Volkhov or 471.30000 to 469.10000 Ma

Collections (2 total)


Time interval Ma Country or state Original ID and collection number
Volkhov471.3 - 469.1Sweden (Bornholm) Nileus planiceps (173625 173626)