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Syrella
Taxonomy
Syrella was named by Archbold (1996). It is not extant. Its type is Syrella occidenta.
It was assigned to Syringothyrididae by Archbold (1996); and to Permasyrinxinae by Williams et al. (2007).
It was assigned to Syringothyrididae by Archbold (1996); and to Permasyrinxinae by Williams et al. (2007).
Species
Synonymy list
Year | Name and author |
---|---|
1996 | Syrella Archbold p. 32 |
2007 | Syrella Williams et al. p. 2793 |
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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. †Syrella Archbold 1996
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†Syrella elongata Armstrong 1970
†Syrella occidenta Archbold 1996
†Syrella plodowskii Waterhouse 1978
Diagnosis
No diagnoses are available
Measurements
part | N | mean | minimum | maximum | median | s.d. | |
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shell height | 5 | 15.4 | 15.0 | 16.5 | 15.0 | 0.652 |
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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 Artinskian to the top of the Changhsingian or 290.10000 to 252.17000 Ma
Collections (41 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Artinskian | Australia (Western Australia) | S. occidenta (85844) | |
Artinskian | Australia (Queensland) | Permasyrinx elongata (66235 66236 66237 66238 66239 66240 66241 66242 66243 66244 66245 66246 66247 66248 66249 66250 66251 66252 66253 66254 66256 66257 120382 120636 120637) Spirifer tasmaniensis (103948) Subansiria elongata (101542) | |
Kungurian | Australia (Western Australia) | Spirifera sp. (101512) | |
Kungurian | Australia (Queensland) | Permasyrinx elongata (66227) | |
Changhsingian | Nepal | Punctocyrtella plodowskii (43166 43177 43182 43186 43190 43197 43199 43216 43262 43263 43270) |