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Ptychocarpus
Taxonomy
Ptychocarpus was named by Weiss (1869). It is not extant. Its type is Ptychocarpus hexastichus.
It was assigned to Pteridophyta by Andrews (1970); and to Marattiales by Lakhanpal et al. (1976), Chandra and Tewari (1991).
It was assigned to Pteridophyta by Andrews (1970); and to Marattiales by Lakhanpal et al. (1976), Chandra and Tewari (1991).
Species
P. hexastichus (type species)
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1869 | Ptychocarpus Weiss |
| 1970 | Ptychocarpus Andrews |
| 1976 | Ptychocarpus Lakhanpal et al. |
| 1991 | Ptychocarpus 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.
Diagnosis
No diagnoses are available
Measurements
No measurements are available
No ecological data are available
Age range: base of the Westphalian to the top of the Changhsingian or 318.70000 to 251.90200 Ma
Collections (22 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Carboniferous | USA (Indiana) | P. unitus (12668) | |
| Carboniferous | Spain | P. sp. (11185 11186) | |
| Pennsylvanian | USA (Kansas) | P. candolliana (24639 24640 24646) P. candolliana, P. feminaeformis (24638) P. candolliana, P. unitus (24643) P. feminaeformis (24647) | |
| Pennsylvanian | USA (Illinois) | P. sp. (11190) | |
| Westphalian | USA (Illinois) | P. sp. (11189) | |
| Stephanian | Spain (Cuenca) | P. sp. (11180) | |
| Stephanian | Spain | P. sp. (11177) | |
| Stephanian A | USA (Ohio) | P. sp. (11188) | |
| Permian | USA (Texas) | P. sp. (11174) | |
| Kungurian | Russian Federation | P. sp. 1 (30433 30478 30480) P. sp. 1, P. sp. 2 (30434) | |
| Capitanian - Wuchiapingian | Malaysia | P. sp. 1 (30289) | |
| Changhsingian | China (Liaoning) | P. sp. 1 (29959) | |
| Changhsingian | China (Xizang) | P. sp. 1 (29792) |