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Sphaerexochus parvus

Trilobita - Phacopida - Cheiruridae

Taxonomy
Sphaerexochus parvus was named by Billings (1865) [Holotype apparently lost; Shaw and Bolton designate GSC 88624 as provisional lectotype.]. Its type specimen is GSC 1330 and is a 3D body fossil.

Sister species lacking formal opinion data
S. arcuatus, S. dimorphis, S. filius, S. lanei, S. lorum

Synonymy list
YearName and author
1865Sphaerexochus parvus Billings
1925Sphaerexochus parvus Raymond p. 1489 figs. Plate 10, fig. 5

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Ecdysozoa
—Panarthropoda
phylumArthropodaLatreille 1829
subphylumArtiopoda(Hou and Bergstrom)
RankNameAuthor
classTrilobitaWalch 1771
orderPhacopidaSalter 1864
suborderCheirurinaHarrington and Leanza 1957
familyCheiruridaeHawle and Corda 1847
subfamilySphaerexochinaeOpik 1937
genusSphaerexochusBeyrich 1845
speciesparvusBillings 1865

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.

†Sphaerexochus parvus Billings 1865
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Diagnosis
No diagnoses are available