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Pterygospermum
Taxonomy
Pterygospermum was named by Pant and Nautiyal (1960). It is not extant.
It was assigned to Plantae by Andrews (1970).
It was assigned to Plantae by Andrews (1970).
Species
Synonymy list
Year | Name and author |
---|---|
1960 | Pterygospermum Pant and Nautiyal |
1970 | Pterygospermum Andrews |
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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. †Pterygospermum Pant and Nautiyal 1960
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†Pterygospermum raniganjense Pant and Nautiyal 1960
†Pterygospermum spiculatum Karmakar and Roy 1984
Diagnosis
No diagnoses are available
Measurements
No measurements are available
No ecological data are available
Collections (3 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Artinskian - Kungurian | India | P. sp. 1 (30159) | |
Kungurian | India (West Bengal) | P. spiculatum (229995) | |
Wordian - Lopingian | India | P. raniganjense (30166) |