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Chesapecten (Chesapecten) nefrens

Bivalvia - Pectinida - Pectinidae

Taxonomy
Chesapecten nefrens was named by Ward and Blackwlder (1975).

It was recombined as Chesapecten (Chesapecten) nefrens by Ward (1992).

Synonyms
Synonymy list
YearName and author
1840Pecten madisonius Conrad p. 48 figs. Plate 24, Fig. 1
1975Chesapecten nefrens Ward and Blackwelder pp. 9-10 figs. Plate 2, Figs. 4-6
1975Chesapecten nefrens Ward and Blackwlder pp. 9-10 figs. Plate 2, Figs. 4-6
1992Chesapecten (Chesapecten) nefrens Ward p. 71

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classBivalvia
—Eubivalvia
subclassAutobranchia(Groblen 1894)
infraclassPteriomorphia(Beurlen 1944)
—OstreomorphiFerussac 1822
RankNameAuthor
—OstreioniFerussac 1822
—OstreataFerussac 1822
superorderOstreiformiiFerussac 1822
orderPectinida(Gray 1854)
suborderPectinidina(Adams and Adams 1858)
superfamilyPectinoideaRafinesque 1815
—PectinoidaeRafinesque 1815
familyPectinidaeWilkes 1810
genusChesapecten
subgenusChesapecten
speciesnefrens(Ward and Blackwlder 1975)

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.

†Chesapecten (Chesapecten) nefrens Ward and Blackwlder 1975
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Invalid names: Pecten madisonius Conrad 1840 [replaced]
Diagnosis
ReferenceDiagnosis
L. W. Ward and B. W. Blackwelder 1975hesapecten nefrens is a large Chesapecten with large gapes between disk flanks and along the ventral commissure, nonuniform scabrous lirae, a pronounced byssal notch, unflattened ribs, and an only slightly convex right valve.
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 Burdigalian to the top of the Serravallian or 20.45000 to 11.63000 Ma

Collections (34 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Miocene - Langhian23.04 - 13.82USA (North Carolina) Chesapecten nefrens (173047)
Burdigalian20.45 - 15.98USA (Maryland) Chesapecten nefrens (79101 79102) Pecten madisonius (70591)
Langhian15.98 - 13.82USA (Maryland) Chesapecten nefrens (69023) Pecten madisonius (55517)
Serravallian13.82 - 11.63USA (Virginia) Chesapecten nefrens (71642 71643)
Serravallian13.82 - 11.63USA (Maryland) Chesapecten nefrens (60376 70828 70830 70832 70844 70845 70846 70855 71638 71641 71648 79103 79104 79105 79106 79107 79108 79109 79110 79111 79112 79113 79114 79116 79352 79353)