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Roudairia
Taxonomy
Roudairia was named by Munier-Chalmas (1881) [Sepkoski's age data: K Ceno K Maes-u].
It was assigned to Arcticidae by Vokes (1980) and Kirby and Saul (1995); and to Veneroida by Sepkoski (2002).
It was assigned to Arcticidae by Vokes (1980) and Kirby and Saul (1995); and to Veneroida by Sepkoski (2002).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1881 | Roudairia Munier-Chalmas p. 74 |
| 1980 | Roudairia Vokes p. 157 |
| 1995 | Roudairia Kirby and Saul p. 28 |
| 2002 | Roudairia Sepkoski |
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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. †Roudairia Munier-Chalmas 1881
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†Roudairia brasiliensis Maury 1930
†Roudairia squiresi Kirby and Saul 1995
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M. X. Kirby and L. R. Saul 1995 | Inflated arcticid bivalves of trigonal to subquadrate outline with a strongly carinate posterior; sculpture of undulating ribs on the flank. Hinge of right valve with three cardinals and four laterals: 1 at the ventral hinge border, anterior to 3a; 3a dorsal to 1; 3b bifid; AI short, subtrigonal; AHi elongate. Hinge of left valve with two cardinals and two laterals; 2b obscurely bifid; 4b elongate, thin; All chevron-shaped; PII elongate with transverse striations on both sides. Posterior adductor muscle scar bordered anteriorly by a strong myophoric flange. |