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Exigua

Trilobita - Ptychopariida - Plethopeltidae

Taxonomy
Exigua was named by Howell (1937). It is not extant.

It was assigned to Plethopeltidae by Jell and Adrain (2002).

Synonyms
Synonymy list
YearName and author
1937Exigua Howell
1940Brassicicephalus Lochmann
2002Exigua Jell and Adrain p. 375
2002Brassicicephalus Sepkoski

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumArtiopoda(Hou and Bergstrom)
classTrilobitaWalch 1771
subclassLibristoma
orderPtychopariidaSwinnerton 1915
familyPlethopeltidaeRaymond 1925
genusExiguaHowell 1937

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.

G. †Exigua Howell 1937
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Invalid names: Brassicicephalus Lochmann 1940 [synonym]
Diagnosis
No diagnoses are available