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Taxonomy
Isoxys was named by Walcott (1890) [Sepkoski's age data: Cm Atda-l Cm mMid-u Sepkoski's reference number: 566,781]. Its type is Isoxys chilhoweanus.
It was considered an invalid subgroup of Thylacocephala by Schram (2014).
It was assigned to Arthropoda by Williams et al. (1996), Sepkoski (2002), Bambach et al. (2007) and Briggs et al. (2008); and to Isoxyidae by Lerosey-Aubril et al. (2020).
It was considered an invalid subgroup of Thylacocephala by Schram (2014).
It was assigned to Arthropoda by Williams et al. (1996), Sepkoski (2002), Bambach et al. (2007) and Briggs et al. (2008); and to Isoxyidae by Lerosey-Aubril et al. (2020).
Species
I. auritus, I. chilhoweanus (type species), I. communis, I. curvirostratus, I. longissimus, I. minor, I. paradoxus, I. volucris
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1890 | Isoxys Walcott |
| 1996 | Isoxys Williams et al. p. 950 |
| 2002 | Isoxys Sepkoski |
| 2007 | Isoxys Bambach et al. p. S78 |
| 2008 | Isoxys Briggs et al. p. 251 |
| 2020 | Isoxys Lerosey-Aubril et al. p. 510 |
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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. †Isoxys Walcott 1890
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†Isoxys auritus Jiang 1982
†Isoxys chilhoweanus Walcott 1890
†Isoxys communis Glaessner 1979
†Isoxys curvirostratus Vannier and Chen 2000
†Isoxys longissimus Simonetta and Delle Cave 1975
†Isoxys minor Luo et al. 2008
†Isoxys paradoxus Hou 1987
†Isoxys volucris Williams et al. 1996
Diagnosis
No diagnoses are available