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Sifella
Taxonomy
Sifella was named by Baarli (2021). Its type is Sifella patera.
It was assigned to Atrypinae by Baarli (2021).
It was assigned to Atrypinae by Baarli (2021).
Species
S. patera (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 2021 | Sifella Baarli p. 424 |
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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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| B. G. Baarli 2021 | Small Atrypinae with even, fine ribs, no carination, a small beak and orthocline to anacline area. The shell is strongly dorsibiconvex to nearly convexoplane with a short, narrow fold in the ventral valve. Shell is thick with a pedicle callist and strongly impressed muscle scars. Thick, short teeth with rounded, relatively large dental cavities. Thick, raised socket plates with cardinal pit and small crural bases. Jugal processes terminate in jugal plates that nearly touch. Around eight whorls of the spiralia. |
Measurements
No measurements are available
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| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Aberhan et al. 2004 | |||||
Collections
No collection or age range data are available