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Yoldia (Portlandia) cooperii
Taxonomy
Yoldia cooperii was named by Gabb (1865). It is extant.
It was corrected as Yoldia cooperi by Arnold (1903), Clark (1925), Grant and IV and Gale (1931); it was recombined as Yoldia (Portlandia) cooperii by Etherington (1931); it was recombined as Yoldia (Kalayoldia) cooperii by Hertlein and Grant (1972), Moore (1983), Coan et al. (2000) and Hendy (2021).
It was corrected as Yoldia cooperi by Arnold (1903), Clark (1925), Grant and IV and Gale (1931); it was recombined as Yoldia (Portlandia) cooperii by Etherington (1931); it was recombined as Yoldia (Kalayoldia) cooperii by Hertlein and Grant (1972), Moore (1983), Coan et al. (2000) and Hendy (2021).
Sister species lacking formal opinion data
Portlandia sanchuensis, Portlandia sphaerica, Portlandia carolimartini, Y. breweri, Y. clallamensis, Y. emersoni, Y. frater, Y. knoxensis, Y. leurovata, Y. longa, Y. multiconcentrica, Y. oblongoides, Y. palachei, Y. praeposneri, Y. scitula, Y. septariana, Y. sobrina, Y. soror, Y. subacuta, Y. franciscoi, Y. siliqua, Y. caudata, Y. kovatschensis, Y. posneri
Synonymy list
| Year | Name and author |
|---|---|
| 1865 | Yoldia cooperii Gabb p. 189 |
| 1866 | Yoldia cooperii Gabb p. 31 figs. PI. 9, Fig. 54 |
| 1903 | Yoldia cooperi Arnold p. 99 |
| 1923 | Yoldia cooperii Clark and Arnold p. 137 |
| 1925 | Yoldia cooperi Clark p. 78 |
| 1931 | Yoldia (Portlandia) cooperii Etherington p. 67 |
| 1931 | Yoldia cooperi Grant, IV and Gale p. 128 |
| 1972 | Yoldia (Kalayoldia) cooperii Hertlein and Grant p. 151 |
| 1983 | Yoldia (Kalayoldia) cooperii Moore p. A25 figs. Plate 3, figures 19, 20 |
| 2000 | Yoldia (Kalayoldia) cooperii Coan et al. p. 113 |
| 2021 | Yoldia (Kalayoldia) cooperii Hendy |
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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.
Yoldia (Portlandia) cooperii Gabb 1865
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Hendy et al. 2009, Aberhan et al. 2004 | |||||
Age range: base of the Late/Upper Eocene to the top of the Late/Upper Pleistocene or 37.20000 to 0.01170 Ma
Collections (20 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Eocene | USA (California) | Yoldia cooperi (71161 71162 71164 71166 71167 71168 71169 71170 71171 71173 71174 71182) | |
| Early/Lower Oligocene | USA (California) | Yoldia cooperi (71187 71188 71192 71195) | |
| Chattian | Canada (British Columbia) | Yoldia cooperii (206743) | |
| Chattian | USA (California) | Yoldia cooperi (11601) | |
| Burdigalian - Langhian | USA (Oregon) | Yoldia cooperi (39592) | |
| Late/Upper Pleistocene | USA (California) | Yoldia cooperi (96566) |