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Characichnos tridactylus
Taxonomy
Characichnos tridactylus was named by Whyte and Romano (2001). It is considered to be a form taxon. Its type specimen is USEGS F00803, a footprint, and it is a trace fossil. Its type locality is Rail Hole Bight tracksite, which is in an Aalenian fluvial-deltaic sandstone/siltstone in the Saltwick Formation of the United Kingdom. It is the type species of Characichnos.
Synonymy list
| Year | Name and author |
|---|---|
| 2001 | Characichnos tridactylus Whyte and Romano |
| 2003 | Characichnos tridactylus Romano and Whyte p. 202 |
| 2007 | Characichnos tridactylus Wings et al. p. 125 |
| 2016 | Characichnos tridactylus Milner and Lockley p. 156 |
| 2020 | Characichnos tridactylus Castanera et al. p. 282 |
| 2021 | Characichnos tridactylus Klein and Lucas p. 58 |
| 2025 | Characichnos tridactylus Foster et al. pp. 304-305 |
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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.
†Characichnos tridactylus Whyte and Romano 2001
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| H. Klein and S. G. Lucas 2021 | Two to four elongate, parallel hypichnial ridges (or epichnial grooves) that may be straight, gently curved or slightly sinuous. The termination of the ridges (or grooves) may be straight or slightly flexed. | |
| J. R. Foster et al. 2025 | Elongate tracks consisting of two to four parallel hypichnial ridges or epichnial grooves that may be straight, gently curved, or slightly sinuous. Terminations of the ridges or grooves may be straight or sharply reflexed. Trackways consist of two rows of tracks (indicating a bipedal track maker) in which the long axes of the tracks are parallel to each other in straight trackways, and either parallel or oblique to the midline of the trackway. |
Measurements
No measurements are available
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| Source: c = class, subp = subphylum, uc = unranked clade | |||||
| References: Kiessling 2004, Carroll 1988, Hendy et al. 2009 | |||||