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Pterichnus isopodicus
Taxonomy
Pterichnus isopodicus was named by Gaillard et al. (2005). It is considered to be a form taxon. Its type specimen is FSL 525002-2, a footprint, and it is a trace fossil. Its type locality is Mas de Pégourdy Quarry, Crayssac (Pteraichnus beds), which is in a Tithonian peritidal marl in the Cazals Formation of France.
Synonymy list
| Year | Name and author |
|---|---|
| 2005 | Pterichnus isopodicus Gaillard et al. |
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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.
†Pterichnus isopodicus Gaillard et al. 2005
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| C. Gaillard et al. 2005 | Trackways with two symmetrical track rows; external width between 4 and 12 mm (average 7 mm). Each row with repeated, elongate scratch-like tracks (up to 10 mm long; average 5 mm) making an angle of 15–20 degrees with the midline (1⁄4trackway axis). Tracks have alternate symmetry. Internal or peripheral drag marks absent. |