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Argopecten callidus
Taxonomy
Pecten (Plagioctenium) callidus 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 Pecten (Aequipecten) purpuratus callidus by Grant and IV and Gale (1931); it was recombined as Argopecten callidus by Moore (1984).
It was recombined as Pecten (Aequipecten) purpuratus callidus by Grant and IV and Gale (1931); it was recombined as Argopecten callidus by Moore (1984).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1925 | Pecten (Plagioctenium) callidus Hertlein figs. pl. 45, figs. 1, 3, 5, 6 |
| 1926 | Pecten (Plagioctenium) callidus Jordan and Hertlein p. 437 |
| 1931 | Pecten (Aequipecten) purpuratus callidus Grant, IV and Gale p. 211 figs. Plate 5, Figure 4 |
| 1984 | Argopecten callidus Moore p. B38 figs. Plate 10, figures 7, 9 |
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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 callidus Hertlein 1925
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| L. G. Hertlein 1925 | Shell of medium size, the valves moderately arched. Right valve ornamented by about 21 or 22 rather high, flat-topped, radiating ribs separated by narrower interspaces, tops of ribs smooth, but sides and interspaces sculptured by fine, sharp lamellae; anterior and posterior margins sculptured by con- centric lines of growth only; ventral margin rounded; ears unequal, the anterior with a large byssal notch and ornamented by about five or six radiating riblets crossed by concentric lines of growth ; the posterior sculptured by several radiating riblets. Left valve more convex than right and somewhat one-sided in appearance, with sculpture quite similar to that of right valve except that the interspaces are slightly wider; anterior ear carrying a small, rounded notch and ornamentation con- sisting of small, radiating riblets and concentric lines of growth; posterior ear sculptured much as the anterior. Alti- tude 55 mm. ; longitude 55 mm. ; diameter 19 mm. ; apical angle of valves approximately 105°. |
Measurements
No measurements are available
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| Source: g = genus, f = family, o = order | |||||
| Reference: Kiessling 2004 | |||||
Age range: Pliocene or 5.33300 to 2.58000 Ma
Collections (10 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Pliocene | USA (California) | Pecten purpuratus (96907 96908) | |
| Pliocene | Mexico (Baja) | Argopecten callidus (66170 66174) | |
| Pliocene | Mexico (Baja California Sur) | Pecten callidus (43686) | |
| Pliocene | Mexico (Baja California) | Pecten callidus (97124 97125 97126 97127) | |
| Pliocene | Mexico (Sonora) | Pecten callidus (96564) |