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Callavia

Trilobita - Redlichiida - Holmiidae

Taxonomy
Callavia was named by Matthew (1897) [Sepkoski's age data: Cm Atda-u Sepkoski's reference number: 80,81]. It is not extant. Its type is Olenellus broggeri.

It was assigned to Mesonacidae by Walcott (1910); to Callaviinae by Palmer and Repina (1993); to Holmiidae by Whittington et al. (1997); and to Olenellida by Sepkoski (2002).

Synonymy list
YearName and author
1897Callavia Matthew
1910Callavia Walcott p. 274
1993Callavia Palmer and Repina p. 26 fig. 6,5,8
1997Callavia Whittington et al. p. 416
2002Callavia Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumMandibulata
classTrilobitaWalch 1771
orderRedlichiidaRichter 1932
suborderOlenellina
familyHolmiidaeHupé 1953
genusCallaviaMatthew 1897

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 1993Callaviinae with intergenal spines well developed, adjacent to genal spines. Intergenal ridge usually present.