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Rissoina (Schwartziella)
Taxonomy
Schwartziella was named by Nevill (1881) [Sepkoski's age data: T Mi R Sepkoski's reference number: 650]. It is extant.
It was reranked as Rissoina (Schwartziella) by Gardner (1948), Desjardin (1949), Weisbord (1962), Rosenberg (1965) and Rosenberg (2005).
It was assigned to Rissoinae by Ladd (1972); to Rissoidae by Todd (2001); to Neotaenioglossa by Sepkoski (2002); and to Rissoina by Gardner (1948), Desjardin (1949), Weisbord (1962), Rosenberg (1965) and Rosenberg (2005).
It was reranked as Rissoina (Schwartziella) by Gardner (1948), Desjardin (1949), Weisbord (1962), Rosenberg (1965) and Rosenberg (2005).
It was assigned to Rissoinae by Ladd (1972); to Rissoidae by Todd (2001); to Neotaenioglossa by Sepkoski (2002); and to Rissoina by Gardner (1948), Desjardin (1949), Weisbord (1962), Rosenberg (1965) and Rosenberg (2005).
Subtaxa
Species lacking formal opinion data
Rissoina alabamenesis, Rissoina bakeri, Rissoina effusa, Rissoina elongata, Rissoina firmata, Rissoina flexuosa, Rissoina fragilis, Rissoina gisna, Rissoina hannai, Rissoina heterolira, Rissoina indrai, Rissoina juncea, Rissoina laurae, Rissoina nereina, Rissoina nigeriensis, Rissoina plicata, Rissoina subornata, Rissoina supracosta, Schwartziella maiquetiana
Synonymy list
Year | Name and author |
---|---|
1881 | Schwartziella (Schwartziella) Nevill |
1881 | Schwartziella Nevill p. 82 |
1948 | Rissoina (Schwartziella) Gardner p. 193 |
1949 | Rissoina (Schwartziella) Desjardin p. 199 |
1962 | Rissoina (Schwartziella) Weisbord p. 122 |
1965 | Rissoina (Schwartziella) Rosenberg p. 66 |
1972 | Schwartziella Ladd p. 63 |
2001 | Schwartziella Todd |
2001 | Schwartziella (Schwartziella) Todd |
2002 | Schwartziella Sepkoski |
2005 | Rissoina (Schwartziella) Rosenberg p. 66 |
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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.
Subg. Rissoina (Schwartziella) Nevill 1881
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Subg. Schwartziella (Pandalosia) Laseron 1956
Subg. Schwartziella (Schwartziella) Nevill 1881
Schwartziella bryerea Montagu 1803
Schwartziella catesbyana d'Orbigny 1842
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Invalid names: Rissoa scalarella Adams 1845 [synonym], Rissoina (Schwartziella) floridana Mörch 1876 [synonym]
Schwartziella fischeri Desjardin 1949
Schwartziella pleistocena Bartsch 1915
Diagnosis
Reference | Diagnosis | |
---|---|---|
H. S. Ladd 1972 | Shell: minute to small, elongate-conic, non-umbilicate, solid, with axial ribs. Aperture oval, channelled posteriorly, rounded anteriorly; inner lip concave, thickened; peristome simple. Outer lip opisthocline, with strong varix. Base with or without spiral fold. Protoconch multi spiral or paucispiral, weakly sculptured with a spiral row of raised gemmules and very minute, scattered granules or minute, irregular pits. |