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Batrachopus grandis
Taxonomy
Batrachopus grandis was named by Kim et al. (2020). It is considered to be a form taxon. Its type specimen is Trackway T 16 (casts, CUE SJ IS 2 R and UCM 214.326), a footprint, and it is a trace fossil. Its type locality is Jahye-ri tracksite (level 2), which is in an Aptian terrestrial sandstone in the Jinju Formation of South Korea.
Synonymy list
| Year | Name and author |
|---|---|
| 2020 | Batrachopus grandis Kim et al. p. 4 |
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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.
†Batrachopus grandis Kim et al. 2020
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| K. S. Kim et al. 2020 | B. grandis ichnosp. nov. is much larger than all previously described Batrachopus ichnospecies and morphotypes, mostly ‘lumped’ under the Lower Jurassic ichnogenus B. deweyi3, and differs from them in consistently displaying a well-defined heel making up on average ~40% of total pes length. B. grandis ichnosp. nov. is also less outwardly rotated than type Batrachopus (B. deweyi): i.e., in the former morphotype digit III parallels the trackway mid line, not digit II as in the latter ichnospecies with more outwardly rotated pes. No other Batrachopus ichnospecies has been described in such detail, from such a large and well preserved sample, even with skin traces, as Korean B. grandis ichnosp. nov. This allows for the definition of anatomy-consistent and diagnostic features such as the relative heel length and relative digit divarication angles with III-IV consistently greater than I-II and II-III (SI Fig. 3): i.e., ∠III-IV > ∠I-II and ∠II-III. |
Measurements
No measurements are available
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| Source: subo = suborder, subc = subclass, c = class, subp = subphylum | |||||
| References: Carroll 1988, Hendy et al. 2009, Benton 1983 | |||||