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Arcuolenellus

Trilobita - Redlichiida - Olenellidae

Taxonomy
Arcuolenellus was named by Palmer and Repina (1993) [Sepkoski's age data: Cm Tojo]. Its type is Olenellus arcuatus.

It was assigned to Bristoliinae by Palmer and Repina (1993); to Olenellidae by Whittington et al. (1997); and to Olenellida by Sepkoski (2002).

Species
Species lacking formal opinion data

View classification of included taxa

Synonymy list
YearName and author
1993Arcuolenellus Palmer and Repina p. 24
1997Arcuolenellus Whittington et al. p. 409
2002Arcuolenellus Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumMandibulata
classTrilobitaWalch 1771
orderRedlichiidaRichter 1932
suborderOlenellina
superfamilyOlenelloidea
familyOlenellidae
genusArcuolenellus

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
ReferenceDiagnosis
A. R. Palmer and L. N. Repina 1993Bristohinae with posterior margin of cephalon strongly and evenly curved back distally; genal spines short, at posterolateral corners, situated well behind level of occipital ring. Intergenal spine absent. Preglabellar field short. Width of interocular area about half width of glabella at L2. Posterior tips of ocular lobes opposite Ll.