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Geukensia demissa (ribbed horsemussel)

Bivalvia - Mytilida - Mytilidae

Taxonomy
Mytilus demissus was named by Dilwyn (1817). It is extant.

It was recombined as Modiolus demissus by Richards (1962); it was recombined as Volsella demissa by Matthews (1967); it was recombined as Geukensia demissa by Hendy et al. (2008).

Synonymy list
YearName and author
1817Mytilus demissus Dilwyn p. 314
1962Modiolus demissus Richards p. 56
1967Volsella demissa Matthews
2008Geukensia demissa Hendy et al.

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
phylumMollusca
classBivalvia
Eubivalvia
RankNameAuthor
subclassAutobranchia(Groblen 1894)
infraclassPteriomorphia(Beurlen 1944)
MytilomorphiFerussac 1822
orderMytilida(Rafinesque 1815)
superfamilyMytiloideaRafinesque 1815
familyMytilidaeRafinesque 1815
genusGeukensiaVan de Poel 1959
speciesdemissa(Dilwyn 1817)

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.

Geukensia demissa Dilwyn 1817 [ribbed horsemussel]
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: aragonitef
Composition 2: low Mg calcitef
Entire body: yesf
Adult length: 10 to < 100f
Adult width: 10 to < 100f
Adult height: 10 to < 100f
Thickness: intermediatef
Folds: nonef
Ribbing: minorf
Spines: nonef
Internal reinforcement: nonef
Ontogeny: accretionf
Environment: lagoonal, coastal, inner shelf, outer shelf, oceanic, brackish, freshwaterf
Locomotion: stationaryf
Attached: yesf
Life habit: epifaunalf
Diet: suspension feederf
Vision: blindc
Created: 2007-10-05 05:18:14
Modified: 2009-09-09 10:27:52
Source: f = family, c = class
References: Aberhan et al. 2004, Kiessling 2004

Age range: base of the Late/Upper Pleistocene to the top of the Holocene or 0.12900 to 0.00000 Ma

Collections (12 total)


Time interval Ma Country or state Original ID and collection number
Pleistocene2.58 - 0.0117USA (Delaware) Modiolus demissus (66701 66702)
Pleistocene2.58 - 0.0117USA (New Jersey) Modiolus demissus (66600 66611 66614 66616 66618 66621 66622)
Late/Upper Pleistocene0.129 - 0.0117USA (Virginia) Geukensia demissa (57702)
Late/Upper Pleistocene0.129 - 0.0117USA (Maryland) Modiolus demissus (66706)
Holocene0.0117 - 0.0Canada (Nunavut) Volsella demissa (74986)