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Nilssoniopteris
Taxonomy
Nilssoniopteris was named by Nathorst (1909). It is not extant. Its type is Nilssoniopteris tenuinervis.
It was assigned to Cycadophyta by Andrews (1970) and Chandra and Tewari (1991); and to Bennettitales by Watson and Sincock (1992).
It was assigned to Cycadophyta by Andrews (1970) and Chandra and Tewari (1991); and to Bennettitales by Watson and Sincock (1992).
Species
N. tenuinervis (type species), N. variabilis
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1909 | Nilssoniopteris Nathorst p. 29 |
| 1970 | Nilssoniopteris Andrews |
| 1991 | Nilssoniopteris Chandra and Tewari |
| 1992 | Nilssoniopteris 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. †Nilssoniopteris Nathorst 1909
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†Nilssoniopteris tenuinervis Nathorst 1909
†Nilssoniopteris variabilis Bose and Banerji 1984
Diagnosis
No diagnoses are available