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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Hayashiella
Taxonomy
Hayashiella was named by Kiliç et al. (2015). Its type is Gladigondolella nodosa.
It was assigned to Gondolellidae by Kiliç et al. (2015).
It was assigned to Gondolellidae by Kiliç et al. (2015).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 2015 | Hayashiella Kiliç et al. p. 221 |
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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 | |
|---|---|---|
| A. M. Kiliç et al. 2015 | Platform edges are smooth over most of their length, with characteristic nodes in their anterior part. The platform varies from narrow (H. nodosus) to wide and piriform (H. carpathica) or narrower and constricted (H. lindae). Carina is high with fused (H. carpathica) or well developed denticles (H. nodosa). Short free blade (carpathica, lindae) to medium (nodosus, permica). The cusp lies at the end of the carina. Keel-end is slightly quadrate, blunt or bifurcated. The basal cavity lies below the small cusp, sub-terminal or slightly forward-shifted with respect to the platform |
Measurements
No measurements are available
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| Source: c = class | |||||
| Reference: Aberhan 1992 | |||||
Collections (35 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Olenekian - Carnian | Greece | Metapolygnathus nodosus (222729) | |
| Longobardian | China (Guizhou) | Metapolygnathus nodosus (85165) | |
| Carnian | Greece (Hydra) | Metapolygnathus nodosus (222738 222745 222748) | |
| Carnian | Russian Federation (Primorsky Krai) | Metapolygnathus nodosus (203030) | |
| Carnian - Norian | Russian Federation (Khabarovsk Krai) | Metapolygnathus nodosus (203031) | |
| Carnian - Norian | Greece (Hydra) | Metapolygnathus nodosus (222742) | |
| Tuvalian | Canada (British Columbia) | Metapolygnathus nodosus (47324) | |
| Tuvalian | Russian Federation (Primorskiy Kray) | Metapolygnathus nodosus (203026 203027 203028 203029) | |
| Tuvalian | Austria | Metapolygnathus nodosus (146545 146547 146548 146549 146550 146552) | |
| Tuvalian | China (Guizhou) | Metapolygnathus nodosus (85166) | |
| Tuvalian | Japan | H. nodosa (218080) | |
| Tuvalian - Lacian | Canada (British Columbia) | Metapolygnathus nodosus (47325 47326 47327 47328 47329 47330 47331 47332) | |
| Lacian | Canada (British Columbia) | Metapolygnathus nodosus (47335 47336 47338 47350 47351) | |
| Lacian | USA (Oregon) | Metapolygnathus nodosus (61744) |