| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Hexalasma
Taxonomy
Hexalasma was named by Soshkina (1928) [Sepkoski's age data: P Leon-m P Dora Sepkoski's reference number: 1240]. It is not extant.
It was synonymized subjectively with Pseudocryptophyllum by Hill (1956).
It was assigned to Polycoeliinae by Hill (1981); to Rugosa by Sepkoski (2002); and to Pentaphyllidae by Fedorowski (2009).
It was synonymized subjectively with Pseudocryptophyllum by Hill (1956).
It was assigned to Polycoeliinae by Hill (1981); to Rugosa by Sepkoski (2002); and to Pentaphyllidae by Fedorowski (2009).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1928 | Hexalasma Soshkina |
| 1981 | Hexalasma Hill |
| 2002 | Hexalasma Sepkoski |
| 2009 | Hexalasma Fedorowski p. 576 |
Is something missing? Join the Paleobiology Database and enter the data
|
|
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