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Semihololithus
Taxonomy
Semihololithus was named by Perch-Nielsen (1971).
It was assigned to Calyptrosphaeraceae by Bown and Young (1997).
It was assigned to Calyptrosphaeraceae by Bown and Young (1997).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1971 | Semihololithus Perch-Nielsen |
| 1997 | Semihololithus Bown and Young |
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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. †Semihololithus Perch-Nielsen 1971
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†Semihololithus bicornus Perch-Nielsen 1973
†Semihololithus dens Burnett 1998
†Semihololithus priscus Perch-Nielsen 1973
Diagnosis
No diagnoses are available