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Cercocarpus
Taxonomy
Cercocarpus was named by Humboldt et al. (1823). It is extant.
It was assigned to Rosaceae by Knowlton (1919), Axelrod (1939), Liu et al. (1996).
It was assigned to Rosaceae by Knowlton (1919), Axelrod (1939), Liu et al. (1996).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1823 | Cercocarpus Humboldt et al. |
| 1919 | Cercocarpus Knowlton |
| 1939 | Cercocarpus Axelrod p. 106 |
| 1996 | Cercocarpus Liu 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.
G. Cercocarpus Humboldt et al. 1823
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†Cercocarpus antiquus Lesquereux 1878
Cercocarpus betulaefolius Nuttall 1840
†Cercocarpus orestesi Knowlton 1918
†Cercocarpus praeledifolius Berry 1929
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 Chadronian to the top of the Serravallian or 37.00000 to 11.63000 Ma
Minimum age of oldest fossil (stem group age): 33.9 Ma
Minimum age of oldest fossil (stem group age): 33.9 Ma
Collections (24 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Eocene - Late/Upper Eocene | China (Liaoning) | C. myricaefolia (223815) | |
| Late/Upper Eocene - Early/Lower Oligocene | USA (Colorado) | C. myricaefolius (39851) C. myricaefolius, C. sp. (39837 39839 39849) | |
| Chadronian | USA (Colorado) | C. myricaefolius (24209) | |
| Oligocene - Miocene | USA (Montana) | C. beaannae, C. myricaefolius, C. antiquus (23972) | |
| Miocene | USA (Montana) | C. beaannae (23973) | |
| Burdigalian | USA (Nevada) | C. eastgatensis, C. antiquus (27701) C. ovatifolius (27179) C. ovatifolius, C. eastgatensis (27702) | |
| Hemingfordian - Barstovian | USA (California) | C. antiquus, C. praeledifolius (19206) | |
| Barstovian | USA (Nevada) | C. nevadensis (27630 27631) | |
| Middle Miocene | USA (Nevada) | C. ovatifolius (27700) | |
| Serravallian | USA (Nevada) | C. linearifolius (27629) C. nevadensis (27525 27626 27627) C. nevadensis, C. linearifolius (27527) | |
| Serravallian | USA (California) | C. nevadensis (27529) | |
| Early/Lower Clarendonian | USA (Nevada) | C. antiquus (27659) C. linearifolius (27661 27662) |