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Siphonalia phosoidea
Taxonomy
Siphonalia phosoidea was named by Hanna and Israelsky (1925). Its type specimen is CAS 1716, a shell, and it is a 3D body fossil.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1925 | Siphonalia phosoidea Hanna and Israelsky figs. pl. 7, fig. 10; pl. 8, figs. 5, 7 |
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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.
†Siphonalia phosoidea Hanna and Israelsky 1925
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| G. D. Hanna and M. C. Israelsky 1925 | Shell fusiform, ventricose, with apical angle of 38°, gently shouldered, with short open canal; sculpture consisting of numerous, nearly equally spaced spiral lirse, those on the base being coarser than the others; where crossed by growth lines nodules are formed; axial sculpture consisting of slightly oblique ribs which become strongest at shoulder where they form nodes (seven on body whorl) ; suture slightly raised, undulating; aperture elliptical, produced anteriorly into a short open siphonal canal; columella somewhat twisted. |
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Kiessling 2004, Hendy et al. 2009 | |||||
Age range: Early/Lower Miocene or 23.04000 to 15.98000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Miocene | Peru | Siphonalia phosoidea (93740 93747 93748) |