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Nucleolaria
Taxonomy
Cypraea (Nucleolaria) was named by Oyama (1959) [m. kosnik taxon no: 7878]. It is extant.
It was reranked as Nucleolaria by Groves (1994), Meyer (2003) and Groves and Squires (2023).
It was assigned to Cypraea by Oyama (1959) and Wilson (1993); to Erosariini by Groves (1994); and to Erosariinae by Meyer (2003) and Groves and Squires (2023).
It was reranked as Nucleolaria by Groves (1994), Meyer (2003) and Groves and Squires (2023).
It was assigned to Cypraea by Oyama (1959) and Wilson (1993); to Erosariini by Groves (1994); and to Erosariinae by Meyer (2003) and Groves and Squires (2023).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1959 | Cypraea (Nucleolaria) Oyama pp. 361 - 362 |
| 1993 | Cypraea (Nucleolaria) Wilson p. 185 |
| 1994 | Nucleolaria Groves p. 247 |
| 2003 | Nucleolaria Meyer |
| 2023 | Nucleolaria Groves and Squires p. 8 |
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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.
G. Nucleolaria Oyama 1959
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†Nucleolaria bezoyensis Dolin and Lozouet 2004
†Nucleolaria cowlitziana Groves 1994
Nucleolaria granulata Pease 1862
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| L. T. Groves 1994 | Shell small to medium in size; coarse to fine dorsal nodules with fine inter-nodular threads; prominent dorsal sulcus; coarse ventral ribs; fossula smooth and deep. | |
| L. T. Groves and R. L. Squires 2023 | Shell small to medium in size; coarse to fine dorsal nodules with fine inter-nodular threads; prominent dorsal sulcus; coarse ribs on base of shell; fossula deep with strong dentition (Jousseaume, 1884: p. 98). |
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Kiessling 2004, Hendy et al. 2009 | |||||
Age range
Maximum range based only on fossils: base of the Bartonian to the top of the Late/Upper Pleistocene or 41.30000 to 0.01170 Ma
Minimum age of oldest fossil (stem group age): 38.0 Ma
Minimum age of oldest fossil (stem group age): 38.0 Ma
Collections (15 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Bartonian | USA (Washington) | N. cowlitzensis (52205) N. cowlitziana (158994) | |
| Chattian | France | N. bezoyensis (177708) | |
| Chattian | France (Landes) | N. bezoyensis (152689) | |
| Middle Pleistocene | USA (Hawaii) | Cypraea granulata (96682) | |
| Middle Pleistocene - Late/Upper Pleistocene | USA (Hawaii) | Cypraea granulata (89294 89303 89304 89307 89406) | |
| Late/Upper Pleistocene (interglacial) | USA (Hawaii) | Cypraea granulata (89289 89290 89292 89402 89404) |