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Helminthochiton

Polyplacophora - Helminthochitonidae

Taxonomy
Helminthochiton was named by Salter (1846) [Sepkoski's age data: O Aren P Leon-u Sepkoski's reference number: 275,1029 Salter in M'Coy 1846]. It is not extant. Its type is Helminthochiton griffithi.

It was assigned to Lepidopleuridae by Debrock et al. (1984); to Neoloricata by Sepkoski (2002); and to Helminthochitonidae by Sigwart (2007).

Species
H. griffithi (type species), H. papilio, H. riddlei, H. simplex
Species lacking formal opinion data
H. blacki

Synonymy list
YearName and author
1846Helminthochiton Salter
1984Helminthochiton Debrock et al. p. 1129,1131 fig. 8
2002Helminthochiton Sepkoski
2007Helminthochiton Sigwart p. 28

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
RankNameAuthor
—Serialia
classPolyplacophorade Blainville 1816
subclassPaleoloricata()
suborderChelodina
familyHelminthochitonidaeVan Belle 1975
genusHelminthochitonSalter 1846

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. †Helminthochiton Salter 1846
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†Helminthochiton papilio Whidborne 1892
†Helminthochiton riddlei Frederickson 1962
†Helminthochiton simplex Raymond 1910
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: base of the Turinian to the top of the Wuchiapingian or 457.30000 to 254.14000 Ma

Collections (16 total)


Time interval Ma Country or state Original ID and collection number
Turinian457.3 - 453.8USA (Kentucky) H. blacki (100128 100176 100231)
Shermanian457.3 - 449.6USA (Kentucky) H. blacki (77357 87822)
Lochkovian419.62 - 413.02Australia (New South Wales) H. sp. (25707)
Givetian387.95 - 382.31United Kingdom (England) H. papilio (129878 130270)
Kashirian - Myachkovian313.8 - 307.0USA (Texas) H. simplex (41873)
Desmoinesian312.8 - 306.0USA (Pennsylvania) Glaphurochiton simplex (184098)
Desmoinesian312.8 - 306.0USA (Ohio) H. simplex (71963 79326)
Missourian306.0 - 303.7USA (Oklahoma) H. riddlei (39813)
Artinskian290.1 - 283.3USA (Nevada) H. sp. (39157)
Kungurian283.3 - 274.4USA (Nevada) H. sp. (10472)
Wuchiapingian259.51 - 254.14Greece H. sp. (64176)