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Myonia
Taxonomy
Myonia was named by Dana (1847) [Sepkoski's age data: C Step P Djhu].
It was assigned to Bivalvia by Dana (1849); to Pholadomyoida by Sepkoski (2002); to Pachydomini by Neves et al. (2014); and to Vacunellinae by Morris et al. (1991) and Biakov (2022).
It was assigned to Bivalvia by Dana (1849); to Pholadomyoida by Sepkoski (2002); to Pachydomini by Neves et al. (2014); and to Vacunellinae by Morris et al. (1991) and Biakov (2022).
Species
M. (Myomedia), M. (Myonia), M. arbitrata, M. argentinensis, M. carinella, M. compacta, M. elongata (syn. M. depressa, M. valida, M. accentuata), M. gibbosa (syn. Sanguinolites sibirica), M. komiensiformis, M. komiensis, M. kutygini, M. ovata, M. parallela, M. pollocki, M. sinuosa, M. undata, M. wenxingchangensis
Synonymy list
Year | Name and author |
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1847 | Myonia Dana p. 158 |
1849 | Maeonia Dana p. 694 |
1991 | Myonia Morris et al. p. 94 |
2002 | Myonia Sepkoski |
2014 | Myonia Neves et al. p. 226 |
2022 | Myonia Biakov p. 154 |
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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. †Myonia Dana 1847
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Subg. †Myonia (Myomedia) Waterhouse 1969
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†Myonia (Myomedia) carinata Morris 1845
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Invalid names: Cypricardia rugulosa Dana 1847 [synonym], Maeonia fragilis Dana 1849 [synonym], Myonia (Myonia) sulcatiformis Astafieva-Urbaitis 1976 [synonym], Myonia (Pachymyonia) bytantajensis Astafieva-Urbaitis 1976 [synonym], Myonia (Pachymyonia) lutkevitchi Astafieva-Urbaitis 1976 [synonym], Myonia minor Etheridge 1919 [synonym], Thracia alta Lutkevitch and Lobanova 1960 [synonym], Thracia longa Lutkevitch and Lobanova 1960 [synonym]
†Myonia arbitrata Reed 1932
†Myonia argentinensis Harrington 1955
†Myonia carinella Runnegar 1967
†Myonia compacta Waterhouse 1969
†Myonia elongata Dana 1847
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Invalid names: Myonia accentuata Fletcher 1932 [synonym], Myonia depressa Fletcher 1932 [synonym], Myonia valida Dana 1847 [synonym]
†Myonia komiensiformis Biakov 2022
†Myonia komiensis Maslennikov 1935
†Myonia kutygini Biakov 2022
†Myonia ovata Waterhouse 1969
†Myonia parallela Dun 1932
†Myonia pollocki Maxwell 1964
†Myonia sinuosa Dana 1847
†Myonia undata Dana 1847
†Myonia wenxingchangensis Liu 1976
Diagnosis
No diagnoses are available
Measurements
part | N | mean | minimum | maximum | median | s.d. | |
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shell height | 9 | 20.0 | 11.0 | 39.0 | 20.0 | 9.27 | |
valve height | 57 | 32.2 | 8.62 | 91.3 | 33.0 | 20.0 |
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Source: g = genus, c = class | |||||
References: Clapham 2015, Aberhan et al. 2004 |
Age range: base of the Bashkirian to the top of the Changhsingian or 323.20000 to 252.17000 Ma
Collections (118 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Bashkirian - Moscovian | Argentina | M. sp. (64410 64411) | |
Pennsylvanian | Australia (Queensland) | M. pollocki (144980) | |
Sakmarian | Argentina | M. sp. (132813) Stutchburia argentinensis (91636 91637 132812) | |
Sakmarian | India (Kashmir) | Maeonia arbitrata, Maeonia gracilis (86543) Sanguinolites carinatus (86534) | |
Sakmarian | Australia (Western Australia) | M. sp. (84484 101207) M. sp. nov. (107345) Pachydomus carinatus (131548) | |
Sakmarian | Australia (Tasmania) | M. elongata (105481 105492) | |
Sakmarian | Brazil | M. argentinensis (139502 155153) | |
Sakmarian | Australia (New South Wales) | M. parallela (133743) M. sp. (107625) | |
Sakmarian | Australia (Queensland) | M. parallela (145060) | |
Artinskian | Australia (Queensland) | M. sp. (66210) | |
Artinskian | Mongolia | M. carinata (116247) | |
Kungurian | New Zealand (Southland) | M. compacta (41776) M. sp. A (52838) | |
Kungurian | Russian Federation | M. komiensis (113948 114410) M. kutygini (225511 225512 225513) | |
Roadian | Russian Federation | M. sp. (198781) M. sp., M. komiensis (113946) | |
Roadian | Australia (Queensland) | M. sp. (66276 66278) | |
Roadian | Australia (New South Wales) | Maeonia elongata (161850) Maeonia elongata, Maeonia carinata, Chaenomya undatus (161842) | |
Roadian - Wordian | Australia (Tasmania) | Pachydomus carinatus (133749) | |
Wordian | New Zealand | M. carinata (52843) | |
Wordian | Australia (New South Wales) | Maeonia fragilis (98110) M. carinata (135925) M. carinella (135939) M. elongata (134057) M. elongata, M. valida (83172) M. valida (136663) Pachydomus carinatus (133342 134048) Pholadomya undata, Cypricardia rugulosa, Cypricardia sinuosa (133336) | |
Wordian | Russian Federation | M. elongata (102217) M. komiensis (102218) M. sp. (221245 221250) | |
Wordian | New Zealand (Southland) | M. elongata, M. depressa, M. compacta, M. ovata, M. carinella (41767) | |
Wordian | New Zealand (Nelson) | M. carinata (41797) | |
Wordian - Capitanian | Australia (Queensland) | M. carinata (105130) M. carinella (85041) | |
Wordian - Wuchiapingian | Australia (Queensland) | Pachydomus carinatus (123246 123255) | |
Capitanian | New Zealand (Southland) | M. elongata, M. undata, M. ovata (41777) | |
Capitanian | Russian Federation | M. carinata (114237 114396) M. gibbosa (83131 183118 221260 221261) M. komiensiformis (225514 225515 225516 225517) M. komiensis (102156 114398) M. orulganica (114421) M. sp. (114422 198804 221257) M. sulcatiformis (101696 101697) | |
Capitanian | China (Guangdong) | Wilkingia komiensis (113864) | |
Capitanian | China (Hunan) | Wilkingia komiensis (107815) | |
Wuchiapingian | China (Hubei) | Wilkingia komiensis (123618) | |
Wuchiapingian | Australia (Tasmania) | M. carinata (105431 105432 105434) M. triangulata (51314 105430) | |
Wuchiapingian | China (Hunan) | Wilkingia komiensis (95695 107820 107826) | |
Wuchiapingian | Russian Federation (Sakha) | M. gibbosa (83163) | |
Wuchiapingian | Australia (Queensland) | M. carinata (101569 103021 104740 105009 120326 120334 120335 120336 120337 120338 120339 120340 120341 120342 120343 120536 120539 120661 120663 120665 135921 135924 135926) M. carinella (101555) | |
Wuchiapingian | China (Guizhou) | M. guizhouensis (121006) | |
Wuchiapingian | Russian Federation | M. carinata (114397) M. sp. (102207) | |
Wuchiapingian | China (Guangxi) | Wilkingia komiensis (123625) | |
Changhsingian | New Zealand | M. sp. (98149) | |
Changhsingian | China (Guizhou) | M. wensingchangensis (112013) | |
Changhsingian | Russian Federation | Allorisma gibbosa (131245) |