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Sphenozamites
Taxonomy
Sphenozamites was named by Brongniart (1849). Its type is Cyclopteris beani.
It was assigned to Cycadaceae by Knowlton (1919); to Cycadophyta by Andrews (1970); and to Bennettitales by Watson and Sincock (1992).
It was assigned to Cycadaceae by Knowlton (1919); to Cycadophyta by Andrews (1970); and to Bennettitales by Watson and Sincock (1992).
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1849 | Sphenozamites Brongniart |
| 1919 | Sphenozamites Knowlton |
| 1970 | Sphenozamites Andrews |
| 1992 | Sphenozamites Watson and Sincock |
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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. †Sphenozamites Brongniart 1849
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†Sphenozamites beani Lindley and Hutton 1832
†Sphenozamites oblanceolatus Penhallow 1902
†Sphenozamites rogersianus Fontaine 1883
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Invalid names: Calamites punctatus Emmons 1857 [synonym]
Diagnosis
No diagnoses are available