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Kiaeropterus
Taxonomy
Kiaeropterus was named by Waterston (1979) [Sepkoski's age data: S Ldov S Ludl Sepkoski's reference number: 360]. It is not extant.
It was assigned to Eurypterida by Sepkoski (2002); to Stylonuridae by Tetlie et al. (2007); to Rhenopteridae by Lamsdell et al. (2010), Dunlop et al. (2020); and to Brachyopterellidae by Lamsdell (2025).
It was assigned to Eurypterida by Sepkoski (2002); to Stylonuridae by Tetlie et al. (2007); to Rhenopteridae by Lamsdell et al. (2010), Dunlop et al. (2020); and to Brachyopterellidae by Lamsdell (2025).
Species lacking formal opinion data
Entered
by J. Sepkoski on 2003-01-23; modified by A. McGowan on 2017-02-21
Synonymy list
| Year | Name and author |
|---|---|
| 1979 | Kiaeropterus Waterston |
| 2002 | Kiaeropterus Sepkoski |
| 2007 | Kiaeropterus Tetlie et al. |
| 2010 | Kiaeropterus Lamsdell et al. |
| 2020 | Kiaeropterus Dunlop et al. p. 17 |
| 2025 | Kiaeropterus Lamsdell |
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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. †Kiaeropterus Waterston 1979
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| E. O. Tetlie et al. 2007 | Small eurypterids with subquadrate carapace with broad marginal rim; crescentic eyes large (c. one-third of carapace length) on anterior half of carapace; cardoid raised ocellar area between eyes; appendages V and VI non-spiniferous and simple; individual podomeres with pronounced ridges; mesonoma not wider than carapace; metasoma narrow (emended from Waterson 1979) | |
| J. C. Lamsdell 2025 | Brachyopterellidae with subquadrate
prosomal carapace; prosomal ventral plates of Brachyopterella type; lateral eyes crescentic, longer than a quarter of the carapace length and positioned centrimesially on carapace; ocellar area cardioid in shape; prosomal appendages II–III unknown, appendages IV–VI nonspiniferous unornamented Brachyopterella type; metastoma unknown; telson unknown (after Tetlie et al., 2007b) |
Measurements
No measurements are available
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| Source: o = order | |||||
| Reference: Aberhan et al. 2004 | |||||
Age range: Llandovery or 443.10000 to 432.90000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Llandovery | USA (Pennsylvania) | K. otisius (12765) | |
| Llandovery - Ludlow | USA (New York) | K. otisius (12764) | |
| Silurian | USA (Pennsylvania) | K. otisius (12763) |