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Gabriellus

Trilobita - Redlichiida - Olenellidae

Taxonomy
Gabriellus is a genus. It is not extant. It is the type genus of Gabriellinae.

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

Species lacking formal opinion data

View classification of included taxa

Synonymy list
YearName and author
1993Gabriellus Palmer and Repina p. 24 figs. Figure 4.9
1997Gabriellus Whittington et al. p. 412
2002Gabriellus 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
genusGabriellus

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 1993Olenellidae with posterior margin of cephalon curved forward. Intergenal angle variably developed, situated slightly distal to midlength of posterior margin. Genal spine originating opposite or anterior to Si. Glabella bullet-shaped. Ocular lobes close to glabella, tips opposite or posterior to occipital furrow. Thorax with at least 17 segments; width of thoracic axis greater than width of inner parts of pleural region; third thoracic segment not modified; fifteenth segment with long axial spine. Opisthothorax not clearly differentiated. Pygidum elongate, sides convergent posteriorly, end bluntly pointed.