| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Acer medianum
Taxonomy
Acer medianum was named by Knowlton (1902). It is not extant.
Sister species lacking formal opinion data
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1902 | Acer medianum Knowlton |
| 1919 | Acer medianum Knowlton |
| 1938 | Engelhardtia tuckeri Smith |
| 1938 | Quercus malheurensis Smith |
| 1987 | Acer medianum Wolfe and Tanai |
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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.
†Acer medianum Knowlton 1902
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Invalid names: Engelhardtia tuckeri Smith 1938 [synonym], Quercus malheurensis Smith 1938 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: p = phylum | |||||
| Reference: Kiessling 2009 | |||||
Age range: Burdigalian or 20.44000 to 15.97000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Burdigalian | USA (Nevada) | Acer medianum (27179) |