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Argopecten percarus
Taxonomy
Pecten (Aequipecten) percarus was named by Hertlein (1925). Its type specimen is LSJU (no number), a shell, and it is a 3D body fossil.
It was recombined as Argopecten percarus by Moore (1984).
It was recombined as Argopecten percarus by Moore (1984).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1925 | Pecten (Aequipecten) percarus Hertlein |
| 1926 | Pecten (Aequipecten) percarus Jordan and Hertlein p. 435 |
| 1984 | Argopecten percarus Moore p. B39 figs. Plate 10, figure 6; plate 12, figure 4 |
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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.
†Argopecten percarus Hertlein 1925
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| L. G. Hertlein 1925 | Shell moderately large, equilateral, subequivalve, moderately thin, somewhat compressed, the outline round. Right valve ornamented by about 22 moderately strong, rounded ribs, separated by round-bottomed interspaces which are not quite as wide as the ribs ; ribs and interspaces sculptured by regular, wavy, incremental lines, and, at irregular intervals, by stronger lines of growth ; hinge line about one-half as long as the disk and slightly indented at the beaks; ears unequal, the anterior with a large byssal notch and sculpture consisting of about six or seven radiating riblets, the posterior ear ornamented by about seven radiating riblets, both ears sculptured by incremental lines. Left valve more arched and sharper at umbo than right, and somewhat one-sided in appearance, the disk ornamented by about 25 or 26 rounded, radiating ribs, and also concentrically sculptured much as on right valve; ears ornamented by about six or seven radiating ribs, crossed by concentric incremental lines; ears slightly concave, anterior with a slight byssal notch. Altitude 82 mm. ; longitude 91 mm. ; diameter approximately 12 mm. ; apical angle of valves approximately 118°. |