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Nucleospira
Taxonomy
Nucleospira was named by Hall (1859). Its type is Spirifer ventricosus.
It was assigned to Spiriferacea by Kirk and Amsden (1952); to Nucleospiridae by Talent (1963), Bassett and Cocks (1974), Jones (1982), Jin and Chatterton (1997), Musteikis and Modzalevskaya (2002), Williams et al. (2002); and to Spiriferida by Sepkoski (2002).
It was assigned to Spiriferacea by Kirk and Amsden (1952); to Nucleospiridae by Talent (1963), Bassett and Cocks (1974), Jones (1982), Jin and Chatterton (1997), Musteikis and Modzalevskaya (2002), Williams et al. (2002); and to Spiriferida by Sepkoski (2002).
Species
Species lacking formal opinion data
N. aquilonaris, N. australis, N. barrisi, N. bubovica, N. calypta, N. carlukensis, N. carlukensis, N. concentrica, N. inelegans, N. laevigata, N. lens, N. maillieuxi, N. marginata, N. minima, N. musculosa, N. obesa, N. pisiformis, N. pulchra, N. raritas, N. robusta, N. rowleyi, N. sireal, N. ventricosta
Synonymy list
| Year | Name and author |
|---|---|
| 1859 | Nucleospira Hall |
| 1952 | Nucleospira Kirk and Amsden |
| 1963 | Nucleospira Talent p. 49 |
| 1974 | Nucleospira Bassett and Cocks |
| 1982 | Nucleospira Jones p. 1393 |
| 1997 | Nucleospira Jin and Chatterton |
| 2002 | Nucleospira Musteikis and Modzalevskaya |
| 2002 | Nucleospira Sepkoski |
| 2002 | Nucleospira Williams et al. p. 1579 |
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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. †Nucleospira Hall 1859
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†Nucleospira bellornata Talent 1963
†Nucleospira concinna Hall 1843
†Nucleospira cunctata Cooper and Grant 1976
†Nucleospira hecetensis Kirk and Amsden 1952
†Nucleospira lentilca Havlicek 1990
†Nucleospira pisum Sowerby 1839
†Nucleospira subsphaerica Johnson 1970
†Nucleospira superata Easton 1962
†Nucleospira ventricosa Hall 1857
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 34 | 2.15 | 0.700 | 4.90 | 2.40 | 1.17 | |
| valve height | 2 | 3.13 | 2.71 | 3.61 | 3.16 | 0.632 |
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| Source: g = genus, subo = suborder, c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Hendy 2009, Nesnidal et al. 2013 | |||||
Collections (479 total)
Oldest occurrences | |||
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Llandovery | China (Sichuan) | N. sp. (25734) | |
| Llandovery | USA (Nevada) | N. sp. (467) | |
| Llandovery | United Kingdom (Wales) | N. sp. (465) | |
| Llandovery | China | N. sp. (25811) | |
| Llandovery | USA (New York) | N. sp. (462 463) | |
| Llandovery - Wenlock | Venezuela | N. sp. (25066) | |
| Silurian | Australia (Victoria) | N. sp. (10187 10191) | |
| Silurian | USA (Indiana) | N. pisiformis (75266) | |
| Silurian | USA (Oklahoma) | N. sp. (528) | |
| Aeronian - Telychian | China | N. sp. (197405) | |
Youngest occurrences |
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| Time interval | Ma | Country or state | PBDB collection number |
| Tournaisian | USA (Iowa) | N. barrisi (3309 3314 3339) | |
| Kinderhookian - Osagean | USA (Nevada) | N. sp. (5752) | |
| Osagean | USA (New Mexico) | N. sp. (553) | |
| Chadian | USA (Kentucky) | N. sp. (2640 2641 2644) | |
| Chadian | USA (Tennessee) | N. rowleyi (6914) | |
| Chadian - Arundian | USA (Tennessee) | N. rowleyi (6916 6917 6918 6920) | |
| Asbian | Ireland | N. carlukensis (229121) | |
| Chesterian | USA (Montana) | N. sp. (578 581) | |
| Moscovian | Canada (Nunavut) | N. aquilonaris (62696) | |
| Kungurian | USA (Texas) | N. cunctata (43589) | |