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Diplothmema
Taxonomy
Diplothmema was named by Stur (1877). It is not extant. Its type is Rhodes patentissima.
It was assigned to Pteridospermophyta by Andrews (1970).
It was assigned to Pteridospermophyta by Andrews (1970).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1877 | Diplothmema Stur |
| 1970 | Diplothmema 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. †Diplothmema Stur 1877
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†Diplothmema gothanica Iannuzzi and Pfefferkorn 2002
†Diplothmema patentissimum Ettingshausen 1875
Diagnosis
No diagnoses are available
Measurements
No measurements are available
No ecological data are available
Age range: base of the Late/Upper Famennian to the top of the Kungurian or 364.70000 to 272.30000 Ma
Collections (24 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Famennian | Belgium (Namur) | Diplotmema pseudokeilhaui (32280) | |
| Tournaisian | Canada (Newfoundland and Labrador) | Diplotmema patentissimum (28007) | |
| Tournaisian | Canada (Nova Scotia) | Diplotmema patentissimum (28335) | |
| Mississippian | Canada (Newfoundland and Labrador) | Diplotmema adiantoides (28014 28015 28032 28860) | |
| Mississippian | USA (Missouri) | D. geniculatum (12122) | |
| Mississippian | USA (Utah) | D. trifoliolata, D. obtusiloba, D. arnoldi (11209) | |
| Mississippian | Canada (New Brunswick) | Diplotmema patentissimum (28544 31255) | |
| Carboniferous - Desmoinesian | USA (Missouri) | D. furcatum, D. obtusiloba (11196) | |
| Carboniferous | Turkey | Diplotmema adiantoides (27820) | |
| Carboniferous | USA (Indiana) | D. obtusiloba (11197) | |
| Carboniferous | USA (Alabama) | D. sp. (28982) | |
| Chadian - Arundian | United Kingdom (England) | D. patentissima (21315) | |
| Visean | Brazil | D. gothanica (34159) | |
| Visean | Peru | D. gothanica (34126) | |
| Bashkirian - Gzhelian | USA (Colorado) | D. patentissima (11206) | |
| Pennsylvanian | USA (Illinois) | D. cheathami, D. sp. (11204) | |
| Pennsylvanian | USA (Michigan) | D. sp. (10889) | |
| Asselian - Kungurian | USA (Oklahoma) | D. pachyderma (11147) | |
| Permian | USA (Texas) | D. sp. (24622) | |
| Sakmarian - Kungurian | USA (Texas) | D. sp. (11152) |