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Spiriferina walcotti
Taxonomy
Spirifer walcotti was named by Sowerby (1822). It is the type species of Spiriferina.
It was recombined as Spiriferina walcotti by Siblik (1999), Alméras and Fauré (2007), Paredes et al. (2013).
It was recombined as Spiriferina walcotti by Siblik (1999), Alméras and Fauré (2007), Paredes et al. (2013).
Sister species lacking formal opinion data
S. alata, S. ascendens, S. betcalcis, S. billingsi, S. chilensis, S. cristata, S. haueri, S. hirsuta, S. holtzapfeli, S. kentuckensis, S. koeveskalliensis, S. madagascariensis, S. mojsisovicsiana, S. muensteri, S. muensteri, S. munsteri, S. munsteri, S. oppeli, S. oxyptera, S. panderi, S. parvula, S. pia, S. pinguis, S. pinquis, S. rostrata, S. solidirostrus, S. subelliptica, S. sublilangense, S. subtexta, S. trigonella, S. walcoti, S. ampla, S. koeveskalliensis, S. mentzeli, S. mentzelii, S. bilotensis, S. cristata, S. salemensis
Synonymy list
| Year | Name and author |
|---|---|
| 1822 | Spirifer walcotti Sowerby |
| 1999 | Spiriferina walcotti Siblik p. 429 figs. Pl 3, fig 5 |
| 2007 | Spiriferina walcotti Alméras and Fauré p. 348 figs. Pl 1, figs 7-10 |
| 2013 | Spiriferina walcotti Paredes et al. figs. Pl 1, fig 1 |
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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.
†Spiriferina walcotti Sowerby 1822
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 6 | 16.9 | 11.5 | 26.6 | 16.4 | 5.32 |
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| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Nesnidal et al. 2013 | |||||
Age range: base of the Hettangian to the top of the Oxynotum or 201.40000 to 192.90000 Ma
Collections (18 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Hettangian | Austria | Spiriferina walcotti (29060) | |
| Late/Upper Hettangian - Early/Lower Sinemurian | Bulgaria | Spiriferina walcotti (106899) | |
| Early/Lower Sinemurian | Germany | Spiriferina walcotti (28875 28880 28895 28897) | |
| Early/Lower Sinemurian | Chile | Spiriferina walcotti (210172) | |
| Early/Lower Sinemurian | Germany (Baden-Württemberg) | Spiriferina walcotti (38729 38731) | |
| Early/Lower Sinemurian | United Kingdom (England) | Spiriferina walcotti (29241) | |
| Oxynotum | Portugal | Spiriferina walcotti (159048) | |
| Oxynotum | France | Spiriferina walcotti (159084) | |
| Sinemurian | Germany | Spiriferina walcotti (28935 28940 28941 28942) | |
| Sinemurian | Luxembourg | Spiriferina walcotti (32014) | |
| Sinemurian | France | Spiriferina walcotti (140822) |