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Trigonomyelon
Taxonomy
Trigonomyelon was named by Walton (1925). It is not extant. Its type is Dadoxylon pedroi.
It was assigned to Peltaspermales by Andrews (1970); and to Gymnospermae by Lakhanpal et al. (1976), Chandra and Tewari (1991).
It was assigned to Peltaspermales by Andrews (1970); and to Gymnospermae by Lakhanpal et al. (1976), Chandra and Tewari (1991).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1925 | Trigonomyelon Walton |
| 1970 | Trigonomyelon Andrews |
| 1976 | Trigonomyelon Lakhanpal et al. |
| 1991 | Trigonomyelon Chandra and Tewari |
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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. †Trigonomyelon Walton 1925
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†Trigonomyelon kamthiensis Prasad 1986
†Trigonomyelon raniganjense Maheshwari 1967
Diagnosis
No diagnoses are available
Measurements
No measurements are available
No ecological data are available
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Wordian | Oman | T. sp. (35517) | |
| Wordian - Lopingian | India | T. sp. 1 (30176) | |
| Lopingian | India (Maharashtra) | T. kamthiensis (229239) | |
| Lopingian | India (West Bengal) | T. raniganjense (225032) |