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Vacunella
Taxonomy
Vacunella was named by Waterhouse (1965) [Sepkoski's age data: P Leon-u P Guad-u Sepkoski's reference number: 745]. It is the type genus of Vacunellinae.
It was assigned to Bivalvia by Waterhouse (1965); to Vacunellinae by Morris et al. (1991); to Pholadomyoida by Sepkoski (2002); and to Vacunellidae by Bouchet et al. (2010).
It was assigned to Bivalvia by Waterhouse (1965); to Vacunellinae by Morris et al. (1991); to Pholadomyoida by Sepkoski (2002); and to Vacunellidae by Bouchet et al. (2010).
Synonymy list
| Year | Name and author |
|---|---|
| 1965 | Vacunella Waterhouse p. 377 |
| 1991 | Vacunella Morris et al. p. 94 |
| 2002 | Vacunella Sepkoski |
| 2010 | Vacunella Bouchet et al. |
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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. †Vacunella Waterhouse 1965
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†Vacunella camachoi Rocha-Campos and de Carvalho 1975
†Vacunella curvata Morris 1845
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Invalid names: Allorisma audax Dana 1847 [synonym], Chaenomya bowenensis Etheridge Jr 1892 [synonym], Pholadomya (Homomya) glendonensis Dana 1849 [synonym], Sanguinolites mitchellii de Koninck 1876 [synonym]
†Vacunella dawsonensis Runnegar 1967
†Vacunella elongata Ciriacks 1963
†Vacunella lunulata Maslennikov 1935
†Vacunella novosemelica Muromtseva 1981
†Vacunella oblonga Waterhouse 1969
†Vacunella praecurvata Astafieva-Urbajtis 1990
†Vacunella rostrata Nakazawa and Newell 1968
†Vacunella waterhousei Dun 1932
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. B. Waterhouse 1965 | Inflated shells with anterior orthogyrous umbones, and a shallow depression near the anterior margin in some forms and below the umbo in others. Posterior umbonal ridge well rOWlded in cross-profile, posterior dorsal face concave. Moderately wide posterior dorsal gape. Ornament of concentric wrinkles, costae and very fine pustules. Shell thin, of Simple platy structure. Ligament opisthodetic, parinvicular, supported by sturdy nymphs, contained in moderately defined depression. Anterior adductor (Fig. 21) placed close to anterior ventral extremity, attached by attenuated portion of isthmus to deeply impressed protractor. Anterior retractor lies closer to the umbo on the anterior umbonal ridge. Posterior adductor large (Fig. 3H), placed close to the hinge, posterior retractor elongate, attached to adductor, sub rectangular posteriorly, extended well beyond adductor anteriorly. Pallial line probably with a large shallow sinus. Hinge edentulous, thickened under nymphS and in front of umbo. |