| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Haplostigma
Taxonomy
Haplostigma was named by Seward (1931). It is not extant.
It was assigned to Lycopodophyta by Andrews (1970); and to Pteridophyta by Taylor et al. (2009).
It was assigned to Lycopodophyta by Andrews (1970); and to Pteridophyta by Taylor et al. (2009).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1931 | Haplostigma Seward |
| 1970 | Haplostigma Andrews |
| 2009 | Haplostigma Taylor et al. |
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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 Late/Upper Devonian to the top of the Kungurian or 382.70000 to 272.30000 Ma
Collections (20 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Devonian - Late/Upper Devonian | South Africa (Western Cape) | H. irregularis (20734 20735 20736 20737 20738 20739 20740 20741 20742 20748) H. kowiensis, H. irregularis (14355) | |
| Middle Devonian - Late/Upper Devonian | South Africa (Eastern Cape) | H. irregularis (14340 14352 20727 20743 20746 20747) H. kowiensis, H. irregularis (20728) | |
| Late/Upper Devonian | Chile (Huasco) | H. furquei (223691) | |
| Artinskian - Kungurian | South Africa (Free State) | H. permianica (14284) |