| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Downiesphaeridium
Taxonomy
Downiesphaeridium was named by Islam (1993). It is not extant.
It was assigned to Dinophyceae by Islam (1993).
It was assigned to Dinophyceae by Islam (1993).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1993 | Downiesphaeridium Islam |
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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. †Downiesphaeridium Islam 1993
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†Downiesphaeridium aciculare Islam 1993
†Downiesphaeridium armatum Islam 1993
†Downiesphaeridium spinulastrum Islam 1993
Diagnosis
No diagnoses are available
Measurements
No measurements are available
No ecological data are available
Age range: base of the Late/Upper Albian to the top of the Late/Upper Turonian or 106.30000 to 89.80000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Albian - Late/Upper Turonian | Antarctica | D. armatum (150206) |