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Vertipecten
Taxonomy
Pecten (Vertipecten) was named by Grant, IV and Gale (1931). Its type is Pecten nevadanus.
It was reranked as Vertipecten by Addicott (1968), Adegoke (1969), Addicott (1974), Moore (1984), Smith (1991), Sepkoski (2002).
It was assigned to Pecten by Grant and IV and Gale (1931); to Pectinidae by Addicott (1968), Adegoke (1969), Addicott (1974), Moore (1984), Smith (1991); and to Pterioida by Sepkoski (2002).
It was reranked as Vertipecten by Addicott (1968), Adegoke (1969), Addicott (1974), Moore (1984), Smith (1991), Sepkoski (2002).
It was assigned to Pecten by Grant and IV and Gale (1931); to Pectinidae by Addicott (1968), Adegoke (1969), Addicott (1974), Moore (1984), Smith (1991); and to Pterioida by Sepkoski (2002).
Synonymy list
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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. †Vertipecten Grant and Gale 1931
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†Pecten (Vertipecten) rhytidus Dall 1921
†Pecten (Vertipecten) ynezianus Arnold 1908
†Vertipecten alexclarki Addicott 1973
†Vertipecten bowersi Arnold 1906
†Vertipecten fucanus Dall 1898
†Vertipecten kernensis Hertlein 1925
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Invalid names: Vertipecten diabloensis Clark 1924 [synonym], Vertipecten nevadanus Conrad 1855 [synonym]
†Vertipecten lachenbruchi MacNeil 1967
†Vertipecten perrini Arnold 1906
†Vertipecten popofensis MacNeil 1967
†Vertipecten porterensis Weaver 1912
†Vertipecten yneziana Arnold 1907
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| U. S. Grant, IV and H. R. Gale 1931 | Shell fairly thick, usually large; strengthened with large radial ribs which are somewhat irregular in number and prominence, showing a tendency to bifurcate or multiply by intercalation, often roughened by imbrication; left valve usually strongly convex, right valve nearly flat; ears on large specimens strengthened b.v riblets and sometimes imbricated, the right ventral ear being elongate and narrow, separated from the ventral sub-margin by a large byssal notch which leaves behind it a scar as wide as the ear, the ventral submargin strongly concave, the dorsal nearly straight; interior of hinge practically smooth, except for a shallow cartilage pit. | |
| J. T. Smith 1991 | Valves equal in height and length in most species, but height exceeds length in the youngest taxon. Profiles variable, from equally convex to planoconvex right valves and strongly convex left valves. Ribs or costae and interspaces numerous, of varying widths, with im- bricated or scaly fine sculpture in most taxa. Shagreen or screenlike microsculpture preserved in some species. Rib profiles vary with time (see table 5). Auricles equal, with scaly radial riblets. Byssal notch deep; hinge area smooth, lacking crura. |
Measurements
No measurements are available
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| Source: f = family, o = order | |||||
| Reference: Kiessling 2004 | |||||
Age range: base of the Priabonian to the top of the Langhian or 37.71000 to 13.82000 Ma
Collections (90 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Bartonian - Priabonian | Canada (British Columbia) | Chlamis porterensis (209753) | |
| Priabonian | USA (California) | Pecten yneziana (52626) | |
| Priabonian | USA (Washington) | Pecten porterensis (91606 91607) | |
| Early/Lower Oligocene | USA (California) | Pecten diabloensis (71190 71191 71193 71194 71198 71199) | |
| Early/Lower Oligocene | USA (Washington) | Pecten porterensis (91608) | |
| Oligocene | USA (Washington) | Pecten fucanus (208177 208178) Pecten porterensis (208138) | |
| Oligocene | USA (Alaska) | V. lachenbruchi (187106) V. popofensis (187107) V. sp. (44109) | |
| Chattian | USA (Washington) | V. fucanus (37576 37577 37579 37580 37581 37582 37583 37584 37585 37586 37588 37589 37590 37592 37593) | |
| Chattian | USA (California) | Lyropecten bowersi (52418) Pecten bowersi, Pecten perrini (57789) Pecten nevadanus, Pecten bowersi, Pecten perrini (11601) | |
| Late/Upper Oligocene | USA (California) | V. alexclarki (72406 72408 219727 219731 219733 219734 219737 219738 219755 219756 219759) V. perrini (72409 72410) | |
| Chattian - Aquitanian | USA (California) | V. perrini (37517) | |
| Late/Upper Oligocene - Early/Lower Miocene | USA (Oregon) | V. fucanus (202095) | |
| Aquitanian | USA (Washington) | V. fucanus (37560 203158) | |
| Early/Lower Miocene | USA (California) | Pecten bowersi (71228 71231 203554 237901 237904 237910 237913 238260 238261) Pecten bowersi, Pecten perrini (71215 238165 238168 238176 238212) Pecten perrini (208083 208128 237911 238143 238174 238186 238187 238192 238209 238211 238213 238214 238234 238239 238243 238253 238258) V. nevadanus (167645) | |
| Miocene | USA (Washington) | Pecten fucanus (208033) | |
| Burdigalian - Langhian | USA (Oregon) | V. fucanus (39592) | |
| Langhian | USA (California) | Pecten nevadanus (237573 237575) | |
| Middle Miocene | USA (California) | Pecten bowersi (208037) Pecten perrini (208127) |