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Protosphaeridium
Taxonomy
Protosphaeridium was named by Timofeev (1966). It is not extant.
It was assigned to Acritarcha by Wang et al. (1983).
It was assigned to Acritarcha by Wang et al. (1983).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1966 | Protosphaeridium Timofeev |
| 1983 | Protosphaeridium Wang et al. p. 171 |
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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. †Protosphaeridium Timofeev 1966
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†Protosphaeridium densum Timofeev 1966
†Protosphaeridium volkovae Maithy and Shukla 1977
Diagnosis
No diagnoses are available
Measurements
No measurements are available
No ecological data are available
Age range: base of the Statherian to the top of the Nemakit-Daldynian or 1800.00000 to 525.50000 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Statherian | India (Madhya Pradesh) | P. densum, P. volkovae (227768) | |
| Tonian - Cryogenian | India (Madhya Pradesh) | P. conglutianatum (140265) | |
| Neoproterozoic | Norway (Svalbard Archipelago) | P. sp. (148622 148623) | |
| Nemakit-Daldynian | China (Yunnan) | P. densum (227761) |