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Stephanodiscaceae
Taxonomy
Stephanodiscaceae was named by Glezer and Makarova (1986). It is extant.
It was assigned to Thalassiosirales by Round et al. (1990); and to Stephanodiscales by Guiry and Guiry (2017).
It was assigned to Thalassiosirales by Round et al. (1990); and to Stephanodiscales by Guiry and Guiry (2017).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1986 | Stephanodiscaceae Glezer and Makarova p. 675 |
| 1990 | Stephanodiscaceae Round et al. p. 126 |
| 2017 | Stephanodiscaceae Guiry and Guiry |
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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.
Fm. Stephanodiscaceae Glezer and Makarova 1986
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G. Stephanodiscus Ehrenberg 1845
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Stephanodiscus excentricus Hustedt 1952
Stephanodiscus niagarae Ehrenberg 1845
Stephanodiscus rhombus Mahood 1981
Diagnosis
No diagnoses are available
Measurements
No measurements are available
No ecological data are available
Age range
Maximum range based only on fossils: base of the Aquitanian to the top of the Holocene or 23.04000 to 0.00000 Ma
Minimum age of oldest fossil (stem group age): 13.82 Ma
Minimum age of oldest fossil (stem group age): 13.82 Ma
Collections (21 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Eocene - Late/Upper Miocene | Argentina | Cyclotella sp. (32201) | |
| Aquitanian - Langhian | USA (North Carolina) | Cyclotella kelloggi (48887) | |
| Early/Lower Pliocene | Armenia (Ararat) | Stephanodiscus sp. (219091) | |
| Zanclean | Japan (Iwate) | Cyclotella sp. (56300) | |
| Pliocene | USA (Oregon) | Cyclotella jonesii, Stephanodiscus rhombus (184902) | |
| Blancan | USA (California) | Cyclotella kuetzingiana, Cyclotella striata, Stephanodiscus robustus, Stephanodiscus excentricus (234637) | |
| Piacenzian | Japan | Cyclotella striata (101907) | |
| Piacenzian - Gelasian | Ethiopia (Upr WebiShebele Basn) | Cyclotella sp., Stephanodiscus sp. (22570) Stephanodiscus sp. (22571) | |
| Pleistocene | USA (California) | Stephanodiscus astraea, Stephanodiscus dubius (234664) | |
| Pleistocene | USA (Oregon) | Stephanodiscus excentricus, Stephanodiscus niagarae (184903 184905) | |
| Pleistocene | India (Kashmir) | Cyclotella comta, Stephanodiscus astraea (224663) Cyclotella meneghiniana, Cyclotella iyengaria (224612) | |
| Rancholabrean | USA (California) | Stephanodiscus asteroides, Stephanodiscus carconensis (184917) Stephanodiscus carconensis, Stephanodiscus sp. B (184913) Stephanodiscus hantzchii (184914) Stephanodiscus hantzschii, Stephanodiscus asteroides, Stephanodiscus excentricus (184918) Stephanodiscus sp. nov., Stephanodiscus asteroides, Stephanodiscus excentricus (184915) | |
| Late/Upper Pleistocene | Sweden | Cyclotella comta (162751) | |
| Holocene | North Atlantic | Cyclotella choctawhatcheana (35075) |