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Arionthia polypleura

Rhynchonellata - Spiriferinida - Pennospiriferinidae

Taxonomy
Spiriferina polypleurus was named by Girty (1908) [Spiriferina hilli var. polypleurus]. Its type specimen is USNM 118606, a valve (Ventral valve), and it is a 3D body fossil.

It was recombined as Arionthia polypleura by Cooper and Grant (1976) and Tazawa (2016).

Synonymy list
YearName and author
1908Spiriferina polypleurus Girty p. 380 figs. Pl 21, figs 4-4c
1909Spiriferina polypleurus Girty p. 380 figs. Pl 21, figs 4-4c
1976Arionthia polypleura Cooper and Grant p. 2755 figs. Pl 731, figs 1-27
2016Arionthia polypleura Tazawa p. 382 fig. 10.1

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
—Lophophorata
—PanbrachiopodaCarlson and Cohen 2020
phylumBrachiopodaCuvier 1805
RankNameAuthor
subphylumRhynchonelliformeaWilliams et al. 1996
classRhynchonellataWilliams et al. 1996
orderSpiriferinidaIvanova 1972
suborderSpiriferinidinaIvanova 1972
superfamilyPennospiriferinoideaDagys 1972
familyPennospiriferinidaeDagys 1972
subfamilyPunctospirellinaeDagys 1974
genusArionthia
speciespolypleura()

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.

†Arionthia polypleura Girty 1908
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Diagnosis
No diagnoses are available
Measurements
partNmeanminimummaximummedians.d.
shell height78.144.2012.29.002.58

Composition: low Mg calcitep
Environment: marineuc
Locomotion: stationaryo
Attached: yesp
Life habit: low-level epifaunalo
Diet: suspension feedero
Vision: blindc
Created: 2018-11-10 18:08:52
Modified: 2018-11-10 18:08:52
Source: o = order, c = class, p = phylum, uc = unranked clade
References: Aberhan et al. 2004, Nesnidal et al. 2013

Age range: base of the Kungurian to the top of the Capitanian or 279.30000 to 259.51000 Ma

Collections (12 total)


Time interval Ma Country or state Original ID and collection number
Kungurian279.3 - 272.3Japan Arionthia lamaria (125087 149806) Arionthia polypleura (181933)
Roadian - Capitanian272.3 - 259.51USA (Texas) Spiriferina polypleurus (108835)
Wordian266.9 - 264.28USA (Texas) Arionthia polypleura (81939 101867 102619 105902 106244) Spiriferina polypleurus (108821)
Capitanian264.28 - 259.51USA (New Mexico) Arionthia polypleura (105989)
Capitanian264.28 - 259.51USA (Texas) Arionthia polypleura (106243)