| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Parvithyris
Taxonomy
Parvithyris was named by Grunt (2021). Its type is Spirigera gracilis.
It was assigned to Athyridinae by Grunt (2021).
It was assigned to Athyridinae by Grunt (2021).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 2021 | Parvithyris Grunt pp. 8 - 9 |
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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
| Reference | Diagnosis | |
|---|---|---|
| T. Grunt 2021 | Shell of small size, sub-oval to subpen-tagonal in outline, thick-shelled. Front commissure rec-timarginate to strongly uniplicate. Sinus and fold absent or poorly developed. Sculpture consists of concentric closely spaced and imbricated growth lamellae. Dental plates poor developed, closely adjoining the lateral walls. Hinge plate massive, subquadrate. The median ridge high merged with the inner hinge plate in the ap-ical region. |
Measurements
No measurements are available
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| Source: subo = suborder, c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Nesnidal et al. 2013 | |||||
Age range: Late/Upper Givetian or 383.40000 to 382.31000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Givetian | Germany (Rhineland-Palatinate) | Spirigera gracilis (275563) |