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Pseudosphaerexochus (Pseudosphaerexochus) hemicranium

Trilobita - Phacopida - Cheiruridae

Taxonomy
Sphaerexochus hemicranium was named by Kutorga (1854). It is the type species of Pseudosphaerexochus (Pseudosphaerexochus).

It was recombined as Cheirurus (Pseudosphaerexochus) hemicranium by Schmidt (1881); it was recombined as Pseudosphaerexochus (Pseudosphaerexochus) hemicranium by Kielan-Jaworowska et al. (1991); it was recombined as Pseudosphaerexochus hemicranium by Owen and Bruton (1980), Owen (1981) and Jell and Adrain (2003).

Sister species lacking formal opinion data

View classification of included taxa

Synonymy list
YearName and author
1881Cheirurus (Pseudosphaerexochus) hemicranium Schmidt pp. 171 - 174 figs. pl. 10 f. 1-4; pl 16 f. 22-27
1980Pseudosphaerexochus hemicranium Owen and Bruton
1981Pseudosphaerexochus hemicranium Owen
1991Pseudosphaerexochus (Pseudosphaerexochus) hemicranium Kielan-Jaworowska et al.
2003Pseudosphaerexochus hemicranium Jell and Adrain p. 435

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
Panarthropoda
phylumArthropodaLatreille 1829
subphylumMandibulata
RankNameAuthor
classTrilobitaWalch 1771
orderPhacopidaSalter 1864
suborderCheirurinaHarrington and Leanza 1957
familyCheiruridaeHawle and Corda 1847
subfamilySphaerexochinaeOpik 1937
genusPseudosphaerexochus(Schmidt 1881)
subgenusPseudosphaerexochusSchmidt 1881
specieshemicranium()

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
No diagnoses are available