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Fremontella

Trilobita - Redlichiida - Olenellidae

Taxonomy
Fremontella was named by Harrington (1956) [Sepkoski's age data: Cm Boto-u]. Its type is Wanneria halli.

It was assigned to Olenellinae by Harrington (1956); to Olenellidae by Whittington et al. (1997); and to Olenellida by Sepkoski (2002).

Synonymy list
YearName and author
1956Fremontella Harrington p. 57 figs. Pl. 15, fig. 1-3, 8-9; Text-fig. 1C
1997Fremontella Whittington et al. p. 408
2002Fremontella Sepkoski, Jr.

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

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
H. J. Harrington 1956Olenellinae with well advanced genal spines. Metagenal spines ab- sent in the adult. Metagenal angle sub-rectangular. Glabella parallel-sided with three pairs of lateral glabellar lobes, the an- terior (4p) narrower than the remainder and ill-defined. Frontal glabellar lobe not expanded, evenly rounded anteriorly, slightly encroaching over anterior border of cephalon. Eye lobes short, posterior, reaching level of mid-length of preoccipital glabellar lobe. Cephalic border wide, slightly raised andlflat.