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Chesapecten jeffersonius

Bivalvia - Pectinida - Pectinidae

Taxonomy
Pecten jeffersonius was named by Say (1824). It is a 3D body fossil.

It was recombined as Pecten (Lyropecten) jeffersonius by Dall (1898); it was recombined as Pecten (Chlamys) jeffersonius by Glenn (1904) and Mansfield (1936); it was recombined as Chlamys (Lyropecten) jeffersonius by Mansfield (1932); it was recombined as Chlamys (Lyropecten) jeffersonia by Gardner (1943); it was recombined as Chesapecten jeffersonius by Ward and Blackwelder (1975) and Gibson (1987).

Subspecies
C. septenarius

Synonymy list
YearName and author
1824Pecten jeffersonius Say p. 133 figs. pl. 9, fig. 1
1898Pecten (Lyropecten) jeffersonius Dall p. 722
1904Pecten (Chlamys) jeffersonius Glenn p. 378
1932Chlamys (Lyropecten) jeffersonius Mansfield p. 59
1936Pecten (Chlamys) jeffersonius Mansfield p. 174
1943Chlamys (Lyropecten) jeffersonia Gardner pp. 32, 33
1975Chesapecten jeffersonius Ward and Blackwelder p. 13
1987Chesapecten jeffersonius Gibson p. 69

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classBivalvia
—Eubivalvia
subclassAutobranchia(Groblen 1894)
infraclassPteriomorphia(Beurlen 1944)
RankNameAuthor
—OstreomorphiFerussac 1822
—OstreioniFerussac 1822
—OstreataFerussac 1822
superorderOstreiformiiFerussac 1822
orderPectinida(Gray 1854)
suborderPectinidina(Adams and Adams 1858)
superfamilyPectinoideaRafinesque 1815
—PectinoidaeRafinesque 1815
familyPectinidaeWilkes 1810
genusChesapecten
speciesjeffersonius(Say 1824)

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.

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Diagnosis
ReferenceDiagnosis
L. W. Ward and B. W. Blackwelder 1975hesapecten jetfe?·sonius has a very small byssal notch in adult forms, a moderately heavy shell, a byssal fasciole hardly differentiated from the auricle with respect to sculpture and ele- vation, and a right valve which becomes quite con- vex, especially during later growth, whereas con- vexity in the left valve is seen during earlier growth.
Measurements
No measurements are available
Composition: low Mg calcitef
Composition 2: aragonitef
Environment: marineo
Locomotion: facultatively mobilef
Life habit: low-level epifaunalf
Diet: suspension feederf
Vision: limitedf
Created: 2007-10-05 05:02:01
Modified: 2010-02-16 06:48:49
Source: f = family, o = order
Reference: Kiessling 2004

Age range: base of the Serravallian to the top of the Early/Lower Pleistocene or 13.82000 to 0.78100 Ma

Collections (30 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Miocene - Middle Miocene23.03 - 11.608USA (Rhode Island) Pecten jeffersonius (88534)
Serravallian13.82 - 11.62USA (Maryland) Pecten jeffersonius (55396)
Tortonian11.62 - 7.246USA (Maryland) Pecten jeffersonius (70851 70853)
Early/Lower Pliocene5.333 - 3.6USA (Florida) Chesapecten jeffersonius (79961 79962)
Early/Lower Pliocene5.333 - 3.6USA (Virginia) Chesapecten jeffersonius (59297)
Early/Lower Pliocene5.333 - 3.6USA (North Carolina) Chesapecten jeffersonius (59300)
Zanclean5.333 - 3.6USA (South Carolina) Chesapecten septenarius (60940)
Zanclean5.333 - 3.6USA (Virginia) Chesapecten jeffersonius (71620 71624)
Early/Lower Pliocene - Late/Upper Pliocene5.333 - 2.588USA (North Carolina) Chlamys jeffersonia (59329)
Pliocene5.333 - 2.588USA (Virginia) Pecten jeffersonius (59293)
Pliocene - Pleistocene5.333 - 0.0117USA (Florida) Chlamys jeffersonius (41749)
Late/Upper Pliocene3.6 - 2.588USA (Florida) Chesapecten septenarius (176822)
Late/Upper Pliocene3.6 - 2.588USA (North Carolina) Chlamys jeffersonia (59331)
Late/Upper Pliocene3.6 - 2.588USA (South Carolina) Chesapecten jeffersonius (60933) Chesapecten septenarius (60934 60935 60938 60942) Pecten jeffersonius (92412)
Late/Upper Pliocene3.6 - 2.588USA (Virginia) Chesapecten jeffersonius (78273 79246 79247 79709 80036 80038 80040)
Early/Lower Pleistocene2.588 - 0.781USA (North Carolina) Chesapecten jeffersonius (80035)