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Ellisell
Taxonomy
Ellisell was named by Peel and Berg-Madsen (1988) [Sepkoski's age data: Cm(m)]. Its type is Ellisell yochelsoni.
It was assigned to Volborthellida by Sepkoski (2002); and to Salterellidae by Peel and Berg-Madsen (1988) and Peel (2017).
It was assigned to Volborthellida by Sepkoski (2002); and to Salterellidae by Peel and Berg-Madsen (1988) and Peel (2017).
Species
E. yochelsoni (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1988 | Ellisell Peel and Berg-Madsen p. 80 |
| 2002 | Ellisella Sepkoski |
| 2017 | Ellisell Peel p. 70 |
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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. †Ellisell Peel and Berg-Madsen 1988
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†Ellisell yochelsoni Peel and Berg-Madsen 1988
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. S. Peel and V. Berg-Madsen 1988 | A salterellid agmatan in which the slowly expanding conch contains a cylindrical apertural cavity about half the length of the conch. The central tube is clearly demarcated from the apertural cavity and is usually more than half its width. The wall of the conch is apparently thick relative to the narrow, inner cone of lami- nated deposits. Shell structure and ornamentation are not known, although the internal lamina- ted deposits may have been aragonite. |