| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Tetralasma
Taxonomy
Tetralasma was named by Schindewolf (1942) [Sepkoski's age data: C Vise-l P Djhu Sepkoski's reference number: 893]. It is not extant.
It was assigned to Polycoeliinae by Hill (1956); and to Rugosa by Sepkoski (2002).
It was assigned to Polycoeliinae by Hill (1956); and to Rugosa by Sepkoski (2002).
Species
Synonymy list
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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
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| Source: o = order, c = class | |||||
| Reference: Kiessling 2004 | |||||
Age range: Wuchiapingian or 259.90000 to 254.17000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Wuchiapingian | China (Hunan) | T. tetraseptatum (109856) | |
| Wuchiapingian | China (Guangxi) | T. tetraseptatum (105443) |