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Antarctipecten
Taxonomy
Antarctipecten was named by Beu and Taviani (2013). Its type is Adamussium alanbeui.
It was assigned to Adamussiini by Beu and Taviani (2013).
It was assigned to Adamussiini by Beu and Taviani (2013).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 2013 | Antarctipecten Beu and Taviani p. 24 |
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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 | |
|---|---|---|
| A. Beu and M. Taviani 2013 | A genus of Adamussiini with small, weakly inflated, acline, slightly dorso-ventrally elongate, thin shell (height up to 50 mm, most specimens smaller). Umbonal angle low, c. 110–115 degrees. Auricles only slightly asymmetrical, anterior slightly longer than posterior; RV anterior auricle with semicircular anterior margin, shallowly embayed below by small byssal notch, not functional in adults. Without obvious macrosculpture, other than
elevation of the widely spaced commarginal ridgelets into high, thin lamellae on unusually well-preserved specimens, particularly on LV anterior auricle; some unusually well-preserved specimens bear 6–8 faint to low radial folds on LV, particularly on anterior half of valve; one specimen observed with two obvious radial ridges and a third weak one in centre of RV anterior auricle, forming very low nodules where crossed by commarginal ridgelets. Microsculpture of narrow, raised, relatively widely spaced commarginal ridgelets (3–5 per 1 mm on central and distal areas of disc) and very fine, closely spaced antimarginal ridgelets. Without internal radial ridges; one very short, thin resilial tooth present on each side of resilifer in LV; other internal characters not seen. |
Measurements
No measurements are available
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| Source: f = family, o = order | |||||
| Reference: Kiessling 2004 | |||||
Collections
No collection or age range data are available