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Nuculana (Thestyleda)
Taxonomy
Thestyleda was named by Iredale (1929) [Sepkoski's age data: T Plio R; Synonym of Nuculana Link 1807 [Coan et al. 2000]]. It is extant.
It was reranked as Leda (Thestyleda) by Hashimoto (1982); it was reranked as Nuculana (Thestyleda) by Moore (1983), Todd (2001); it was synonymized subjectively with Nuculana by Coan et al. (2000).
It was assigned to Leda by Hashimoto (1982); to Nuculana by Moore (1983), Todd (2001); to Nuculoida by Sepkoski (2002); and to Nuculanidae by Vokes (1980), Spencer et al. (2004), Mikkelsen (2006).
It was reranked as Leda (Thestyleda) by Hashimoto (1982); it was reranked as Nuculana (Thestyleda) by Moore (1983), Todd (2001); it was synonymized subjectively with Nuculana by Coan et al. (2000).
It was assigned to Leda by Hashimoto (1982); to Nuculana by Moore (1983), Todd (2001); to Nuculoida by Sepkoski (2002); and to Nuculanidae by Vokes (1980), Spencer et al. (2004), Mikkelsen (2006).
Species lacking formal opinion data
Nuculana alferovi, Nuculana amuriensis, Nuculana bathurstensis, Nuculana borsonii, Nuculana calkinsi, Nuculana camelorum, Nuculana carinata, Nuculana castor, Nuculana coelata, Nuculana coloradoensis, Nuculana compalana, Nuculana complanata, Nuculana corbetensis, Nuculana corpulentoides, Nuculana demissa, Nuculana deshayesiana, Nuculana dodona, Nuculana dodsoni, Nuculana duplicarina, Nuculana duplicarina, Nuculana elliptica, Nuculana equilateralis, Nuculana evansi, Nuculana fiski, Nuculana fragilis, Nuculana gnonom, Nuculana inornata, Nuculana kenyana, Nuculana kittensis, Nuculana meriani, Nuculana minmiensis, Nuculana mutuata, Nuculana nagaoi, Nuculana parleacllli, Nuculana pennula, Nuculana perdita, Nuculana perlonga, Nuculana saffordana, Nuculana securiformis, Nuculana slodkewitschi, Nuculana smirna, Nuculana smithvillensis, Nuculana sulcellata, Nuculana taioma, Nuculana travisana, Nuculana turgeo, Nuculana turgeo, Nuculana tyrolensis, Nuculana vadosa, Nuculana wajampolkana, Nuculana yatsushiroensis, Nuculana yunnanensis
Synonymy list
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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.
Subg. Nuculana (Thestyleda) Iredale 1929
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Nuculana (Thestyleda) ramsayi Smith 1885
Thestyleda investigator Dell 1952
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, f = family, c = class | |||||
| References: Kiessling 2004, Sanchez Roig 1926, Aberhan et al. 2004 | |||||
Age range
Maximum range based only on fossils: base of the Tuvalian to the top of the Early/Lower Pleistocene or 233.60000 to 0.77400 Ma
Minimum age of oldest fossil (stem group age): 227.3 Ma
Minimum age of oldest fossil (stem group age): 227.3 Ma
Collections (10 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Carnian | USA (Nevada) | Nuculana sp. (32725) | |
| Carnian | USA (nevada) | Nuculana sp. (32774 32803 32805) | |
| Tuvalian | USA (Nevada) | Nuculana sp. (32538 32731) | |
| Aquitanian - Burdigalian | Russian Federation | Nuculana pleshakovi (50050) | |
| Pliocene - Pleistocene | Malaysia | Leda ramsayi (72098 72100) | |
| Early/Lower Pleistocene | Panama (Bocas) | Nuculana sp. (79871) |