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Rigidella
Taxonomy
Rigidella was named by Opik (1937) [Sepkoski's age data: O Aren-l O Aren-u Sepkoski's reference number: 78]. Its type is Steusloffia mitis.
It was assigned to Bassleratiinae by Henningsmoen (1953); to Quadrijugatoridae by Benson et al. (1961); and to Palaeocopida by Sepkoski (2002).
It was assigned to Bassleratiinae by Henningsmoen (1953); to Quadrijugatoridae by Benson et al. (1961); and to Palaeocopida by Sepkoski (2002).
Species
Species lacking formal opinion data
Synonymy list
Year | Name and author |
---|---|
1937 | Rigidella Opik |
1953 | Rigidella Henningsmoen |
1961 | Rigidella Benson et al. p. Q153 |
2002 | Rigidella 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. †Rigidella Opik 1937
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†Rigidella erratica Krause 1889
†Rigidella mitis Opik 1935
Diagnosis
No diagnoses are available