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Celmus

Trilobita - Ptychopariida - Raymondinidae

Taxonomy
Celmus was named by Angelin (1854) [Sepkoski's age data: O Aren-u Sepkoski's reference number: 1066]. It is not extant. Its type is Celmus granulatus. It is the type genus of Celmidae.

It was assigned to Proetida by Sepkoski (2002); to Dimeropygidae by Jell and Adrain (2002); to Celminae by Bergström and Suzuki (2005); and to Raymondinidae by Adrain and Westrop (2007).

Synonyms
Synonymy list
YearName and author
1854Celmus Angelin
1858Crotalurus Volborth
1963Ischyrophyma Whittington p. 48
2002Celmus Jell and Adrain p. 355
2002Celmus Sepkoski
2002Ischyrophyma Sepkoski
2005Celmus Bergström and Suzuki p. 243
2007Celmus Adrain and Westrop p. 346

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
EcdysozoaAguinaldo et al. 1997
Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumArtiopoda(Hou and Bergstrom)
classTrilobitaWalch 1771
subclassLibristoma
orderPtychopariidaSwinnerton 1915
familyRaymondinidaeClark 1924
genusCelmusAngelin 1854

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. †Celmus Angelin 1854
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Celmus granulatus Angelin 1854
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Invalid names: Crotalurus barrandei Volborth 1858 [synonym]
Celmus michaelmus Adrain and Fortey 1997
Invalid names: Crotalurus Volborth 1858 [synonym], Ischyrophyma Whittington 1963 [synonym]
Diagnosis
No diagnoses are available