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Cymostrophia (Protocymostrophia)
Taxonomy
Protocymostrophia was named as a genus. It is not extant.
It was reranked as Mesodouvillina (Protocymostrophia) by Savage (1981); it was reranked as Cymostrophia (Protocymostrophia) by Williams et al. (2000).
It was assigned to Mesodouvillina by Savage (1981); to Cymostrophia by Williams et al. (2000); and to Strophomenida by Sepkoski (2002).
It was reranked as Mesodouvillina (Protocymostrophia) by Savage (1981); it was reranked as Cymostrophia (Protocymostrophia) by Williams et al. (2000).
It was assigned to Mesodouvillina by Savage (1981); to Cymostrophia by Williams et al. (2000); and to Strophomenida by Sepkoski (2002).
Species lacking formal opinion data
Synonymy list
Year | Name and author |
---|---|
1981 | Mesodouvillina (Protocymostrophia) Savage |
2000 | Cymostrophia (Protocymostrophia) Williams et al. p. 268 |
2002 | Protocymostrophia 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.
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†Mesodouvillina (Protocymostrophia) costulata Barrande 1879
Diagnosis
No diagnoses are available