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Dennstaedtia fremonti
Taxonomy
Sphenopteris fremonti was named by Hall (1843). It is not extant.
It was recombined as Dennstaedtia fremonti by Knowlton (1917).
It was recombined as Dennstaedtia fremonti by Knowlton (1917).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1843 | Sphenopteris fremonti Hall |
| 1917 | Dennstaedtia fremonti Knowlton |
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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.
†Dennstaedtia fremonti Hall 1843
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
No ecological data are available
Age range: base of the Albian to the top of the Late/Upper Cenomanian or 113.20000 to 93.90000 Ma
Collections (6 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Albian | USA (Idaho) | Dennstaedtia fremonti (184621) | |
| Late/Upper Cenomanian | USA (Wyoming) | Dennstaedtia fremonti (31963 31964 31965 31966) | |
| Late/Upper Cretaceous | USA (Wyoming) | Dennstaedtia fremonti (31382) |