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Taxonomy
Peraspis was named by Whittington (1965) [Sepkoski's age data: O Aren-u O Llde Sepkoski's reference number: 383]. It is not extant.
It was assigned to Ptychopariida by Sepkoski (2002); and to Nileidae by Fortey (1975) and Jell and Adrain (2002).
It was assigned to Ptychopariida by Sepkoski (2002); and to Nileidae by Fortey (1975) and Jell and Adrain (2002).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1965 | Peraspis Whittington |
| 1975 | Peraspis Fortey |
| 2002 | Peraspis Jell and Adrain p. 423 |
| 2002 | Peraspis 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. †Peraspis Whittington 1965
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†Peraspis erugata Ross 1970
†Peraspis kolouros Norford and Ross 1978
†Peraspis lineolata Raymond 1925
†Peraspis omega Fortey 1975
†Peraspis yukonensis Dean 1973
Diagnosis
No diagnoses are available