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Pyxillaceae
Taxonomy
Pyxillaceae was named by Simonsen (1972).
It was assigned to Heterineae by Andrews (1976); and to Rhizosoleniales by Simonsen (1972), Round et al. (1990).
It was assigned to Heterineae by Andrews (1976); and to Rhizosoleniales by Simonsen (1972), Round et al. (1990).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1972 | Pyxillaceae Simonsen p. 51 |
| 1976 | Pyxillaceae Andrews p. 19 |
| 1990 | Pyxillaceae Round et al. |
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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. †Pyxillaceae Simonsen 1972
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G. †Pyrgupyxis Hendey 1969
G. †Pyxilla Greville 1865
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: c = class | |||||
| Reference: Kiessling 2004 | |||||
Age range: base of the Lutetian to the top of the Late/Upper Pleistocene or 48.07000 to 0.01170 Ma
Collections (42 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Lutetian | Russian Federation (Kamchatka) | Pyxilla gracilis (202259) | |
| Early/Lower Oligocene | Southern Ocean | Pyxilla sp. (244346 244347 244348 244349 244350 244351 244352 244353 244354) | |
| Oligocene | Southern Ocean | Pyxilla sp. (246758 246759 246760 246762 246763 246768 246769 246770) | |
| Early/Lower Miocene | Southern Ocean | Pyxilla sp. (246741) | |
| Aquitanian - Langhian | USA (North Carolina) | Pyxilla johnsoniana (48887) | |
| Miocene | Southern Ocean | Pyxilla sp. (242785) | |
| Miocene | Indian Ocean | Pyxilla spp. (247769) | |
| Late/Upper Miocene | Southern Ocean | Pyxilla reticulata (247488) Pyxilla sp. (246689) | |
| Zanclean | North Pacific | Pyxilla americana (273945 273946) | |
| Pliocene | Southern Ocean | Pyxilla reticulata (247468 248891) | |
| Pliocene - Pleistocene | Southern Ocean | Pyxilla sp. (246620) | |
| Piacenzian | North Pacific | Pyxilla americana (272481) | |
| Piacenzian - Gelasian | North Pacific | Pyxilla americana (273775) | |
| Gelasian | North Pacific | Pyxilla americana (273764) | |
| Pleistocene | Southern Ocean | Pyxilla reticulata (248998) Pyxilla sp. (243878) | |
| Calabrian | North Pacific | Pyxilla americana (271100 272457 273752 273915) | |
| Late/Upper Pleistocene | Southern Ocean | Pyxilla sp. (244340 244341 244344 244345) |