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Ceanothus (ceanothus)
Taxonomy
Ceanothus was named by Linnaeus (1753). It is extant.
It was assigned to Rhamnaceae by Knowlton (1919) and Brown (1959).
It was assigned to Rhamnaceae by Knowlton (1919) and Brown (1959).
Synonymy list
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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. Ceanothus Linnaeus 1753 [ceanothus]
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Ceanothus americanus Linnaeus 1753
†Ceanothus constrictus Hollick 1906
†Ceanothus cretaceus Dawson 1882
†Ceanothus precrassifolius Axelrod 1939
†Ceanothus precuneatus Axelrod 1939
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: p = phylum | |||||
| Reference: Kiessling 2009 | |||||
Age range
Maximum range based only on fossils: base of the Early/Lower Eocene to the top of the Late/Upper Hemphillian or 55.80000 to 4.90000 Ma
Minimum age of oldest fossil (stem group age): 48.6 Ma
Minimum age of oldest fossil (stem group age): 48.6 Ma
Collections (13 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Ypresian | Canada (British Columbia) | Ceanothus sp. (121046) | |
| Early/Lower Eocene | USA (Idaho) | Ceanothus chaneyi (35347) | |
| Late/Upper Oligocene - Early/Lower Miocene | USA (Montana) | Ceanothus variabilis (23330) | |
| Miocene | USA (Montana) | Ceanothus prespinosus (23973) | |
| Burdigalian | USA (Nevada) | Ceanothus precuneatus (27701) | |
| Hemingfordian - Barstovian | USA (California) | Ceanothus precrassifolius, Ceanothus precuneatus (19206) | |
| Serravallian | USA (Nevada) | Ceanothus leitchii (27527 27627 27629) | |
| Early/Lower Clarendonian | USA (Nevada) | Ceanothus chaneyi (27662) | |
| Late/Upper Hemphillian | USA (California) | Ceanothus tuolumnensis, Ceanothus turlockensis (35271) | |
| Pliocene | USA (Nevada) | Ceanothus chaneyi, Ceanothus leitchii (35922) Ceanothus precuneatus (35908) |