Ruedemannia, Foerste, 1914
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publication ID |
https://doi.org/ 10.3853/j.0067-1975.46.1994.18 |
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DOI |
https://doi.org/10.5281/zenodo.4654524 |
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persistent identifier |
https://treatment.plazi.org/id/03EB87C3-8602-6B24-F991-8B2AF805F3F9 |
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treatment provided by |
Felipe |
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scientific name |
Ruedemannia |
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PI. 8 figs 9-10, PI. 9 figs 1-4
Description. Shell medium, turbiniform, moderately phaneromphalous with convex crenulated selenizone in the middle of whorl; protoconch seemingly smooth, collabral threads in the nepionic whorls; 1 spiral cord above and 2 below selenizone; collabral cords sharp, regularly spaced; outer lip with a wide shallow sinus culminating at the periphery in a short slit.
Locality. Approximately 250 m west of Babbinboon Lane , in Swains Gully, 15 km south-west of Somerton, NSW (Locality 25) .
Stratigraphic position. 130 m above the base of the Namoi Formation.
Additional material. 4 specimens from the same locality .
Geographic distribution. Above locality only.
| Dimensions. Figured specimens | H | W | PA | NW |
|---|---|---|---|---|
| ( F78408 View Materials ) 4.1 mm ( F78409 View Materials a)2.8 | 3.4 mm 2.1 | 67° 70 | 6Y2 5Y2 | |
Geological age. Middle Tournaisian.
Remarks. Ruedemannia sp. differs from R. bembexiformis Campbell & Engel in having spiral cords on the base and a minute umbilicus.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.