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Psephosthenaspis
Taxonomy
Psephosthenaspis was named by Whittington (1953) [Sepkoski's age data: O Llvi-l]. Its type is Bathyurellus strenuus.
It was assigned to Proetida by Sepkoski (2002); and to Bathyuridae by Jell and Adrain (2002) and Adrain and McAdams (2012).
It was assigned to Proetida by Sepkoski (2002); and to Bathyuridae by Jell and Adrain (2002) and Adrain and McAdams (2012).
Synonyms
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Synonymy list
Year | Name and author |
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1953 | Psephosthenaspis Whittington |
1991 | Ludvigsenella Tremblay and Westrop |
2002 | Psephosthenaspis Jell and Adrain p. 432 |
2002 | Psephosthenaspis Sepkoski |
2012 | Psephosthenaspis Adrain and McAdams |
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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. †Psephosthenaspis Whittington 1953
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†Psephosthenaspis ellipsepyga Tremblay and Westrop 1991
†Psephosthenaspis glabrior Fortey and Droser 1996
†Psephosthenaspis microspinosa Fortey and Droser 1996
†Psephosthenaspis pseudobathyurus Ross and Barnes 1967
†Psephosthenaspis strenuus Billings 1865
Invalid names: Ludvigsenella Tremblay and Westrop 1991 [synonym]
Diagnosis
No diagnoses are available