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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Taxonomy
Artemis subquadrata was named by Hanley (1844). It is extant.
It was recombined as Cyclinella subquadrata by Olsson (1922).
It was recombined as Cyclinella subquadrata by Olsson (1922).
Subspecies
Synonymy list
| Year | Name and author |
|---|---|
| 1844 | Artemis subquadrata Hanley |
| 1922 | Cyclinella subquadrata Olsson p. 243 |
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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.
Cyclinella subquadrata Hanley 1844
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†Cyclinella subquadrata quitana Olsson 1922
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, f = family, c = class | |||||
| References: Aberhan et al. 2004, Kiessling 2004, Hendy et al. 2009 | |||||
Age range: base of the Piacenzian to the top of the Late/Upper Pleistocene or 3.60000 to 0.01170 Ma
Collections (6 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Pliocene | Costa Rica | Cyclinella subquadrata (134675) | |
| Piacenzian | Peru | Cyclinella subquadrata (219106 219107) | |
| Piacenzian - Gelasian | Ecuador (Manabi) | Cyclinella subquadrata (51878) | |
| Pleistocene | Peru | Cyclinella subquadrata (207003) | |
| Late/Upper Pleistocene | USA (California) | Cyclinella subquadrata (160361) |