Basic info | Taxonomic history | Classification | Included Taxa |
Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Taxonomy
Xenocheilos spineum was named by Wilson (1951) [non Xenocheilos spineum; Wilson 1951 pl. 95, figs 17 [Xenocheilos sp. indet.]
non Xenocheilos spineum; Deland & Shaw 1956, p. 560, pl. 65, figs 4, 6, 13 [= Xenocheilos sp. indet.].
non Xenocheilos spineum; Kurtz 1975, p. 1033, pl. 4, figs 27-29 [fig. 27 = Xenocheilos sp. indet.; fig. 28 = gen indet.; fig. 29 = Cliffia sp.].]. Its type specimen is YPM 18509, a cephalon/head (cranidium), and it is a 3D body fossil.
Sister species lacking formal opinion data
Synonymy list
Year | Name and author |
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1951 | Xenocheilos spineum Wilson p. 649 figs. pl. 95, figs 15-16 (not 17) |
2009 | Xenocheilos spineum Westrop and Adrain p. 364 figs. 5A-D |
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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.
†Xenocheilos spineum Wilson 1951
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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Source: f = family, c = class | |||||
References: Whittington et al. 1997, Aberhan et al. 2004 |
Collections (10 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Steptoean | Canada (Alberta) | Xenocheilos spineum (54078) | |
Steptoean | USA (Pennsylvania) | Xenocheilos spineum (156632 156640 156642 156669 156670) | |
Franconian | USA (Missouri) | Xenocheilos spineum (9155 9199) | |
Sunwaptan | Canada (Alberta) | Xenocheilos spineum (54077) | |
Dolgellian | USA (Pennsylvania) | Xenocheilos spineum (62080) |