| Basic info | Taxonomic history | Classification | Relationships |
| Morphology | Ecology and taphonomy | Age range and collections |
Semihaswellia
Gymnolaemata - Cheilostomata - Porinidae
Taxonomy
Semihaswellia was named by Canu and Bassler (1917) [Sepkoski's age data: T Eo-m-u R Sepkoski's reference number: 1260]. It is extant.
It was assigned to Gigantoporidae by Cheetham (1962); and to Cheilostomata by Sepkoski (2002).
It was assigned to Gigantoporidae by Cheetham (1962); and to Cheilostomata by Sepkoski (2002).
Species
Species lacking formal opinion data
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1917 | Semihaswellia Canu and Bassler |
| 1917 | Tremotoichos Canu and Bassler p. 59 |
| 1962 | Semihaswellia Cheetham p. 328 |
| 2002 | Semihaswellia Sepkoski, Jr. |
| 2002 | Tremotoichos Sepkoski, Jr. |
| 2007 | Tremotoichos Guha and Gopikrishna |
| 2013 | Tremotoichos Guha |
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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