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Isochirotherium coltoni
Taxonomy
Chirotherium coltoni was named by Peabody (1948). It is considered to be a form taxon. Its type specimen is UCMP 37329, a footprint, and it is a trace fossil. Its type locality is Meteor Crater Quarry area, tracksites, which is in a Spathian wet floodplain mudstone in the Moenkopi Formation of Arizona.
It was misspelled as Isochirotherium cotteri by Lucas et al. (2007); it was recombined as Isochirotherium coltoni by Haubold (1971), Demathieu and Haubold (1972), Haubold (1974), Klein and Lucas (2010), Klein et al. (2011) and Klein and Lucas (2021).
It was misspelled as Isochirotherium cotteri by Lucas et al. (2007); it was recombined as Isochirotherium coltoni by Haubold (1971), Demathieu and Haubold (1972), Haubold (1974), Klein and Lucas (2010), Klein et al. (2011) and Klein and Lucas (2021).
Synonymy list
| Year | Name and author |
|---|---|
| 1948 | Chirotherium coltoni Peabody p. 385 figs. 30; Pl. 44 |
| 1957 | Chirotherium coltoni Baird p. 482 |
| 1958 | Chirotherium coltoni Kuhn p. 21 |
| 1969 | Chirotherium coltoni Haubold p. 94 fig. 4 |
| 1971 | Isochirotherium coltoni Haubold p. 55 |
| 1972 | Isochirotherium coltoni Demathieu and Haubold p. 805 |
| 1974 | Isochirotherium coltoni Haubold p. 107 |
| 2007 | Isochirotherium cotteri Lucas et al. p. 189 |
| 2010 | Isochirotherium coltoni Klein and Lucas p. 54 |
| 2011 | Isochirotherium coltoni Klein et al. p. 223 |
| 2021 | Isochirotherium coltoni Klein and Lucas p. 31 |
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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.
†Isochirotherium coltoni Peabody 1948
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| F. E. Peabody 1948 | Small-manus chirotheriid with pes digit IV noticeably shorter than II; pes length 12.2 cm.; pes digit group I-IV relatively long and metatarsal pad on pes digit V relatively unexpanded compared with those of other small-manus chirotheriids. |
Measurements
No measurements are available
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| Source: subo = suborder, subc = subclass, c = class, subp = subphylum | |||||
| References: Hendy et al. 2009, Carroll 1988, Benton 1983 | |||||