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Cheirurus
Taxonomy
Cheirurus was named by Beyrich (1845).
It was assigned to Cheirurinae by Raymond (1916); to Phacopida by Sepkoski (2002); and to Cheiruridae by Warburg (1925) and Jell and Adrain (2002).
It was assigned to Cheirurinae by Raymond (1916); to Phacopida by Sepkoski (2002); and to Cheiruridae by Warburg (1925) and Jell and Adrain (2002).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1845 | Cheirurus Beyrich |
| 1916 | Cheirurus Raymond p. 30 |
| 1925 | Cheirurus Warburg |
| 2002 | Cheirurus Jell and Adrain p. 357 |
| 2002 | Cheirurus Sepkoski |
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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. †Cheirurus Beyrich 1845
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Subg. †Cheirurus (Crotalocephalina) Pibyl and Vanek 1964
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†Cheirurus (Crotalocephalina) oxina Holloway and Neil 1982
Subg. †Cheirurus (Pseudosphaerexochus) Schmidt 1881
†Cheirurus clasonii Törnquist 1905
†Cheirurus dilatatus Raymond 1916
†Cheirurus glaber Angelin 1854
†Cheirurus juvenis Salter 1848
†Cheirurus marianus Verneuil and Barrande 1855
†Cheirurus nuperus Billings 1866
†Cheirurus patens Raymond 1916
†Cheirurus punctatus Angelin 1854
†Cheirurus tarquininus Billings 1863
†Cheirurus welleri Raymond 1916
G. †Crotalocephalus Salter 1853
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†Crotalocephalus affinis Hawle and Corda 1847
†Crotalocephalus maurus Alberti 1966
†Crotalocephalus meridianus Alberti 1969
†Crotalocephalus pauper Barrande 1852
†Crotalocephalus silverdalensis Etheridge and Mitchell 1917
†Crotalocephalus sternbergi Boeck 1827
†Crotalocephalus struszi Chatterton and Wright 1986
Invalid names: Cerauroides Prantl and Pribyl 1947 [synonym], Pilletopeltis Pillet 1973 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, f = family, c = class | |||||
| References: Hendy 2009, Harrington et al. 1959, Aberhan et al. 2004 | |||||
Collections (176 total)
Oldest occurrences | |||
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Costonian - Marshbrookian | China (GanSu) | C. sp. (8548) | |
| Sandbian | Kazakhstan | C. sp. (80224) | |
| Actonian - Onnian | China (AnHui) | C. sp. (7848) | |
| Katian | China (Jiangxi) | C. sp. (25837) | |
| Edenian - Gamachian | Canada (Quebec) | C. percensis (37800) | |
| Harju | Sweden | C. sp. (378 379) | |
| Richmondian - Gamachian | Canada (Quebec) | C. percensis (37790) | |
| Pirgu | Sweden | C. sp. (161779) | |
| Pirgu - Hirnantian | Sweden (Dalarna) | C. sp. (158137) | |
| Pirgu - Hirnantian | Sweden (Dalarne) | C. sp. (73408) | |
Youngest occurrences |
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| Time interval | Ma | Country or state | PBDB collection number |
| Late/Upper Emsian | Italy | C. sternbergi (26247 26250 26253 26257) | |
| Late/Upper Emsian - Eifelian | Morocco | C. sternbergi (27114) | |
| Eifelian | Czech Republic (Koneprusy) | C. affinis (12257) | |
| Eifelian | Czech Republic | C. affinis (10474) | |
| Eifelian | Morocco | C. sternbergi (27120) | |
| Eifelian | Germany (Hessen) | Crotalocephalus sp. (229648) | |
| Eifelian | Czech Republic (Barrandia) | C. affinis (12040) | |
| Eifelian | Germany (Rhineland-Palatinate) | Crotalocephalus geesianus (188766) | |
| Givetian | Germany | C. neomyops (5907) | |
| Early/Lower Frasnian | Russian Federation (Orenburgskaya Oblast) | Crotalocephalus sp. (83918) | |