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Aquatilavipes izumiensis
Taxonomy
Aquatilavipes izumiensis was named by Azuma et al. (2002). Its type specimen is FPDM-V43, V44, a footprint, and it is a trace fossil. Its type locality is Izumi bird tracksite, which is in a Barremian lacustrine shale/sandstone in the Itsuki Formation of Japan.
Synonymy list
| Year | Name and author |
|---|---|
| 2002 | Aquatilavipes izumiensis Azuma et al. pp. 1-2 figs. 3-4 |
| 2008 | Aquatilavipes izumiensis Fujita p. 33 |
| 2010 | Aquatilavipes izumiensis Shimada et al. p. 50 |
| 2011 | Aquatilavipes izumiensis Xing et al. p. 312 |
| 2014 | Aquatilavipes izumiensis McCrea et al. p. 86 |
| 2015 | Aquatilavipes izumiensis McCrea et al. p. 4 |
| 2016 | Aquatilavipes izumiensis Buckley et al. p. 261 |
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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.
†Aquatilavipes izumiensis Azuma et al. 2002
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| Y. Azuma et al. 2002 | Small footprints, shorter than 38 mm in length, with slender digits. The greatest width of digit III is around 17% of its length in the holotype, although others can be relatively wider (around 20% to 25%). Digit II is approximately 60% the length of digit III, and digit IV is 80%. Each digit narrows distally into a sharp claw impression. Digit II curves inward distally and digit IV outward. The total width between the tips of digits II and IV is on average 19% greater than the length and average divarication between digits II and IV is 120°. The angle between digits II and III is less than that between digits III and IV. Digital pads are present on all toes (two on digit II and three on digits III and IV). |
Measurements
No measurements are available
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| Source: subo = suborder, o = order | |||||
| References: Marsh 1875, Benton 1983 | |||||