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Camarella longirostris
Taxonomy
Camarella longirostra was named by Billings (1859) [measurements of brachial valve.]. Its type specimen is G.S.C. 1039, a valve (brachial valve), and it is a 3D body fossil.
It was recombined as Camerella longirostris by Billings (1859); it was corrected as Camarella longirostris by Twenhofel (1938); it was recombined as Onychoplecia longirostris by Cooper (1956) and King (1964).
It was recombined as Camerella longirostris by Billings (1859); it was corrected as Camarella longirostris by Twenhofel (1938); it was recombined as Onychoplecia longirostris by Cooper (1956) and King (1964).
Synonymy list
| Year | Name and author |
|---|---|
| 1859 | Camerella longirostris Billings p. 127 fig. 53 |
| 1859 | Camarella longirostra Billings p. 302 fig. 53 |
| 1938 | Camarella longirostris Twenhofel p. 53 figs. Plate 7, figures 25-27 |
| 1956 | Onychoplecia longirostris Cooper pp. 533 - 534 figs. Plate 100, A, figures 1-3 |
| 1964 | Onychoplecia longirostris King p. 83 |
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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.
†Camarella longirostris Billings 1859
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| G. A. Cooper 1956 | Shell of about usual size for the genus, tear-shaped in outline with an attenuate beak; lateral margins rounded; apical angle about 70° ? Anterior commissure broadly uniplicate. Surface smooth.
Pedicle valve moderately convex in lateral profile and with the maximum convexity located just posterior to the sulcus; anterior profile broadly, moderately, and evenly convex; umbonal region flattened; median region moderately swollen; sulcus confined to the anterior quarter, wide, shallow, and defined by a narrow, oblique fold on each side; sulcus in width equal to about half the shell width. Lateral regions somewhat swollen and with moderately steep slopes to the margins. Divergent dental plates visible at beak. Brachial valve subcircular in outline; lateral profile strongly convex; anterior profile strongly convex; maximum convexity at the middle where the valve is strongly swollen; fold defined in the anterior quarter only, demarcated by shallow oblique grooves; fold rounded. Lateral slopes steep. |