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Zifondium
Taxonomy
Zifondium was named by Pessagno (1977). It is not extant. Its type is Zifondium lassenensis. It is the type genus of Archaeodictyomitridae.
It was assigned to Archaeodictyomitridae by Pessagno (1977).
It was assigned to Archaeodictyomitridae by Pessagno (1977).
Species
Z. lassenensis (type species)
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1977 | Zifondium Pessagno pp. 41, 47 |
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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
Measurements
No measurements are available
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| Source: p = phylum | |||||
| Reference: Kiessling 1999 | |||||
Age range: base of the Valanginian to the top of the Late/Upper Campanian or 137.05000 to 72.20000 Ma
Collections (12 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Valanginian - Early/Lower Barremian | USA (California) | Z. sp. (185297) | |
| Aptian - Early/Lower Albian | USA (California) | Z. sp. (185263 185333 185359) | |
| Albian | Trinidad and Tobago (Tobago) | Z. pauperatum (49017) | |
| Albian | USA (California) | Z. lassenensis (54049 54071) Z. paupera, Z. sp. A, Z. lassenensis (54072) | |
| Late/Upper Albian | USA (California) | Z. lassenensis (54061) Z. paupera (54062) | |
| Early/Lower Cenomanian | USA (California) | Z. paupera (54066) | |
| Late/Upper Campanian | South Pacific | Z. sp. A (95818) |