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Plectocion
Taxonomy
Plectocion was named by Stewart (1927) [Sepkoski's age data: K Coni].
It was assigned to Neogastropoda by Sepkoski (2002); and to Fasciolariinae by Squires and Saul (2003) and Snyder (2003).
It was assigned to Neogastropoda by Sepkoski (2002); and to Fasciolariinae by Squires and Saul (2003) and Snyder (2003).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1927 | Plectocion Stewart p. 405 figs. Plate XXIII, figs. 12, 13, 14 |
| 2002 | Plectocion Sepkoski |
| 2003 | Plectocion Snyder p. 19 |
| 2003 | Plectocion Squires and Saul p. 152 |
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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. †Plectocion Stewart 1927
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†Plectocion curvirostris Gabb 1864
†Plectocion montis Squires and Saul 2003
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. L. Squires and L. R. Saul 2003 | Shell medium, bucciniform with prominent subsutural collar. Body whorl shoulder rounded to tabu- late. Sculpture consisting of variable-strength spiral cords and collabral ribs, both of which can be obsolete on body whorl shoulder. Growth lines sinuous on body whorl shoulder. Aperture lenticular. Siphonal canal long and twisted. Outer lip somewhat crenulated. Columella with one low fold. |
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Hendy et al. 2009, Kiessling 2004 | |||||
Age range: base of the Late/Upper Coniacian to the top of the Early/Lower Campanian or 89.30000 to 70.60000 Ma
Collections (11 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Coniacian | USA (California) | P. curvirostris (72037 86783 220344) | |
| Late/Upper Coniacian | USA (California) | P. curvirostris (203585 220355 220356) | |
| Santonian | USA (California) | P. curvirostris (215315) | |
| Early/Lower Santonian | USA (California) | P. curvirostris (215293 220343) | |
| Early/Lower Campanian | USA (California) | P. montis (210586 220350) |