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Rhoptrum
Taxonomy
Rhoptrum was named by Schrammen (1910) [Sepkoski's age data: K u]. It is not extant. Its type is Rhoptrum scytaliforme.
It was assigned to Lithistida by Sepkoski (2002); and to Theonellinae by Finks et al. (2004).
It was assigned to Lithistida by Sepkoski (2002); and to Theonellinae by Finks et al. (2004).
Species
R. scytaliforme (type species)
Synonymy list
Year | Name and author |
---|---|
1910 | Rhoptrum Schrammen |
2002 | Rhoptrum Sepkoski |
2004 | Rhoptrum Finks et al. |
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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.
Diagnosis
No diagnoses are available