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Taxonomy
Megalaspis (Plesiomegalaspis) was named by Thoral (1946) [Sepkoski's age data: O Aren-l Sepkoski's reference number: 565].
It was Kayseraspis (Plesiomegalaspis) by Jaanusson (1956); it was synonymized subjectively with Megalaspidella by Harrington et al. (1959); it was reranked as Plesiomegalaspis by Sepkoski (2002); it was synonymized subjectively with Asaphellus by Fortey and Owens (1987) and Jell and Adrain (2002).
It was assigned to Megalaspis by Thoral (1946); to Kayseraspis by Jaanusson (1956); and to Asaphida by Sepkoski (2002).
It was Kayseraspis (Plesiomegalaspis) by Jaanusson (1956); it was synonymized subjectively with Megalaspidella by Harrington et al. (1959); it was reranked as Plesiomegalaspis by Sepkoski (2002); it was synonymized subjectively with Asaphellus by Fortey and Owens (1987) and Jell and Adrain (2002).
It was assigned to Megalaspis by Thoral (1946); to Kayseraspis by Jaanusson (1956); and to Asaphida by Sepkoski (2002).
Synonymy list
| Year | Name and author |
|---|---|
| 1946 | Megalaspis (Plesiomegalaspis) Thoral |
| 1956 | Kayseraspis (Plesiomegalaspis) Jaanusson |
| 2002 | Plesiomegalaspis 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.
Subg. †Kayseraspis (Plesiomegalaspis) Thoral 1946
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Diagnosis
No diagnoses are available