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Ampullina packardi
Taxonomy
Ampullina packardi was named by Popenoe (1937). Its type specimen is CIT (IP) 3453 and is a 3D body fossil. Its type locality is CIT loc. 1054, Aliso Creek, which is in a Campanian marine shale in the Ladd Formation of California.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1937 | Ampullina packardi Popenoe p. 399 figs. Plate 49, figures 4, 5 |
| 1993 | Ampullina packardi Elder and Saul figs. Pl 1, figs 9,10 |
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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.
†Ampullina packardi Popenoe 1937
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. P. Popenoe 1937 | Shell small to medium in size, robust; spire rather short; body whorl very large, about seven-eighths the height of the shell; suture linear, bordered by a narrow sloping shoulder; whorl just below the shoulder markedly impressed by a shallow encircling sulcus; remainder of body whorl globular; anterior apertural margin only slightly produced; columella excavated anteriorly and covered with a smooth heavy callus that entirely conceals the umbilicus; anterior apertural margin rather broadly rounded with a conspicuous fasciole; aperture narrow posteriorly; ornamentation of fine growth-lines with development occasionally of fine, narrow, regularly spaced axial lines. |