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Isthmolithus
Taxonomy
Isthmolithus was named by Deflandre and Fert (1954). It is not extant. Its type is Isthmolithus recurvus.
It was assigned to Zygodiscaceae by Deflandre and Fert (1954); and to Problematica by Andrews (1970).
It was assigned to Zygodiscaceae by Deflandre and Fert (1954); and to Problematica by Andrews (1970).
Species
I. recurvus (type species)
Synonymy list
Year | Name and author |
---|---|
1954 | Isthmolithus Deflandre and Fert |
1970 | Isthmolithus Andrews |
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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