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Clavitella
Taxonomy
Clavitella was named by Skovsted and Peel (2007). Its type is Clavitella curvata.
It was assigned to Problematica by Skovsted and Peel (2007).
It was assigned to Problematica by Skovsted and Peel (2007).
Species
C. curvata (type species)
Synonymy list
Year | Name and author |
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2007 | Clavitella Skovsted and Peel p. 734 |
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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. †Clavitella Skovsted and Peel 2007
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†Clavitella curvata Skovsted and Peel 2007
Diagnosis
Reference | Diagnosis | |
---|---|---|
C. B. Skovsted and J. S. Peel 2007 | Small, gently curved and tapering cone–shaped fossils with circular cross–section. Adapical termination with a circular aperture in a single plane normal to the long axis of the fossil. Apical end partly filled by secondary de posits, but an asymmetrically placed, narrow tubular cavity runs trough the secondary deposits along the supra–apical margin. |