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Pseudomyona

Rostroconchia - Tuarangiida - Pseudomyonidae

Taxonomy
Pseudomyona was named by Runnegar (1983) [Sepkoski's age data: Cm uMid-l Cm Dres Sepkoski's reference number: 543]. Its type is Myona queenslandica.

It was assigned to Tuarangioida by Sepkoski (2002); to Helcionellidae by Gubanov et al. (2004); and to Pseudomyonidae by Peel (2021).

Synonymy list
YearName and author
1983Pseudomyona Runnegar p. 140
2002Pseudomyona Sepkoski
2004Pseudomyona Gubanov et al. p. 11
2021Pseudomyona Peel p. 200

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
RankNameAuthor
phylumMollusca
classRostroconchia
orderTuarangiida(MacKinnon 1982)
familyPseudomyonidaeHinz-Schallreuter 2000
genusPseudomyona

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. †Pseudomyona Runnegar 1983
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Pseudomyona queenslandica Runnegar and Jell 1976
Diagnosis
ReferenceDiagnosis
J. S. Peel 2021Pseudo­bivalved, with comarginal ornamentation continuous across the dorsum; bilaterally symmetrical, with dorsal plane of symmetry separating the lateral surfaces. D­shaped in lateral view with the straight dorsal hinge line interupted by a swollen early growth stage located at about one third of the distance from the sub­apical margin to the supra­apical margin. Inner surface with prominent grooves (ridges on the internal mould) on the dorsal area extending from alongside the early growth stage to each extremity. Teeth on the dorsal margin of each lateral surface forms pits on the internal mould; sub­apically, usually a single deep pit (half­pegma), but supra­apically a single pit or series of up to 10 pits representing interdigitating teeth.
Measurements
No measurements are available
Composition: aragonitec
Locomotion: stationaryc
Life habit: semi-infaunalc
Diet: suspension feederc
Vision: blindc
Created: 2004-02-29 10:30:34
Modified: 2022-05-13 12:06:45
Source: c = class
Reference: Kiessling 2004

Age range: Floran or 507.00000 to 505.00000 Ma

Collections (6 total)


Time interval Ma Country or state Original ID and collection number
Solvan513.0 - 501.0Russian Federation (Siberia) P. queenslandica (49431)
Marjumian513.0 - 498.5Greenland P. groenlandica (219689) P. queenslandica (219688)
Floran507.0 - 505.0Australia (Queensland) Myona queenslandica (56809 56810) P. queenslandica (93409)