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Isochirotherium marshalli

Reptilia - Chirotheriidae

Taxonomy
Chirotherium marshalli was named by Peabody (1948). It is considered to be a form taxon. Its type specimen is UCMP 37348, a footprint, and it is a trace fossil.

It was recombined as Isochirotherium marshalli by Haubold (1971), Demathieu and Haubold (1972), Haubold (1974), Courel and Demathieu (1976), Klein and Lucas (2010), Klein et al. (2011) and Klein and Lucas (2021).

Synonymy list
YearName and author
1948Chirotherium marshalli Peabody p. 388 figs. 31; Pl. 44
1957Chirotherium marshalli Baird p. 482
1958Chirotherium marshalli Kuhn p. 21
1969Chirotherium marshalli Haubold p. 94 fig. 4
1971Isochirotherium marshalli Haubold p. 55
1972Isochirotherium marshalli Demathieu and Haubold p. 805
1974Isochirotherium marshalli Haubold p. 107
1976Isochirotherium marshalli Courel and Demathieu p. 202
2010Isochirotherium marshalli Klein and Lucas p. 54
2011Isochirotherium marshalli Klein et al. p. 223
2021Isochirotherium marshalli Klein and Lucas p. 31

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
RankNameAuthor
—Amniota
—Sauropsida
classReptilia
subclassEureptilia()
—Romeriida
—Diapsida()
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
—Pseudosuchia(Zittel 1890)
familyChirotheriidaeAbel 1935
genusIsochirotherium
speciesmarshalli()

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 marshalli Peabody 1948
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Diagnosis
ReferenceDiagnosis
F. E. Peabody 1948Small-manus chirotheriid with pes digit IV noticeably shorter than II; pes length 22 cm.; pes digit group I-IV as broad as long, pes digit V with large ovoid meta­tarsal pad and reduced phalangeal portion; trackway apparently very narrow, pace angu­lation near 180 degrees, and ratio of stride to pes length 5 to 1.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Diet: carnivoresubo
Created: 2009-01-03 20:38:45
Modified: 2009-01-03 22:38:45
Source: subo = suborder, subc = subclass, c = class, subp = subphylum
References: Hendy et al. 2009, Carroll 1988, Benton 1983

Age range: base of the Aegean to the top of the Bithynian or 247.20000 to 242.00000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Aegean - Bithynian247.2 - 242.0USA (Arizona) Chirotherium marshalli (52806)