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Stenoplax

Polyplacophora - Neoloricata - Ischnochitonidae

Taxonomy
Stenoplax was named by Carpenter (1879) [Sepkoski's age data: T Eo-m R Sepkoski's reference number: 1029]. It is extant.

It was reranked as Ischnochiton (Stenoplax) by Berry (1922) and Oldroyd (1925).

It was assigned to Ischnochiton by Berry (1922) and Oldroyd (1925); to Ischnochitonidae by Abbott (1974); and to Neoloricata by Sepkoski (2002).

Synonymy list
YearName and author
1879Stenoplax Carpenter
1922Ischnochiton (Stenoplax) Berry p. 461
1925Ischnochiton (Stenoplax) Oldroyd p. 22
1974Stenoplax Abbott p. 396
2002Stenoplax Sepkoski

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
RankNameAuthor
—Serialia
classPolyplacophorade Blainville 1816
orderNeoloricataBergenhayn 1955
suborderChitoninaThiele 1910
familyIschnochitonidaeDall 1889
genusStenoplaxCarpenter 1879

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. Stenoplax Carpenter 1879
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†Ischnochiton (Stenoplax) conspicua Carpenter 1879 [conspicuous chiton]
Subg. Stenoplax (Stenoradsia) Carpenter 1879
†Stenoplax conspicua Carpenter 1879 [conspicuous chiton]
†Stenoplax fallax Carpenter 1892
Stenoplax magdalenensis Hinds 1845 [magdalena chiton]
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Invalid names: Ischnochiton (Stenoplax) acrior Carpenter 1892 [synonym], Ischnochiton acrior Carpenter 1892 [synonym]
†Stenoplax quimperensis Dell'Angelo et al. 2011
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: aragonitec
Environment: marine, brackishc
Locomotion: facultatively mobilec
Attached: yesc
Life habit: epifaunalc
Diet: grazerc
Vision: limitedc
Created: 2007-09-07 09:30:10
Modified: 2010-02-15 05:49:47
Source: c = class
Reference: Kiessling 2003

Age range

Maximum range based only on fossils: base of the Lutetian to the top of the Late/Upper Pleistocene or 47.80000 to 0.01170 Ma
Minimum age of oldest fossil (stem group age): 41.3 Ma

Collections (32 total)


Time interval Ma Country or state Original ID and collection number
Lutetian47.8 - 41.3United Kingdom (England) S. anglica (8124)
Priabonian38.0 - 33.9USA (Washington) S. quimperensis (91606) S. sp. A, S. sp. B (40733)
Rupelian33.9 - 28.1USA (Washington) S. sp. A (62246)
Pliocene5.333 - 2.588USA (California) Ischnochiton conspicuus (120820)
Early/Lower Pleistocene2.588 - 0.781USA (California) Ischnochiton magdalenensis (187025) S. heathiana (202495 202496)
Pleistocene2.588 - 0.0117Mexico (Baja California) S. acrior (96592) S. acrior, S. conspicuus (96590)
Pleistocene2.588 - 0.0117USA (California) Ischnochiton conspicuus, Ischnochiton acrior (139843) Ischnochiton conspicuus, Ischnochiton fallax, Ischnochiton magdalenensis, Ischnochiton acrior (138719) Ischnochiton magdalenensis (201624)
Pleistocene - Holocene2.588 - 0.0USA (California) Ischnochiton conspicuus (138721) Ischnochiton conspicuus, Ischnochiton acrior (138821)
Quaternary2.58 - 0.0USA (California) S. conspicuus (37940) S. sp. (37947) S. sp., S. conspicuus (37933)
Middle Pleistocene0.774 - 0.129USA (California) Ischnochiton fallax (138723) S. magdalenensis (202492 202493 202494)
Late/Upper Pleistocene0.129 - 0.0117Mexico S. heathiana (52347)
Late/Upper Pleistocene0.129 - 0.0117USA (California) Ischnochiton acrior, Ischnochiton conspicuus (96566) Ischnochiton acrior, Ischnochiton conspicuus, Ischnochiton magdalenensis (160361) Ischnochiton acrior, Ischnochiton magdalenensis (219029 219030) Ischnochiton magdalenensis (202936 207041 222973) S. heathiana (202491) S. sp., S. heathiana (202490)