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Isochirotherium gierlinskii

Reptilia - Chirotheriidae

Taxonomy
Isochirotherium gierlinskii was named by Ptaszynski (2000). It is considered to be a form taxon. Its type specimen is ZPAL R.7/10:1,2, a footprint, and it is a trace fossil. Its type locality is Wióry tracksite, which is in a Spathian channel sandstone/siltstone in the Wióry Formation of Poland.

Synonymy list
YearName and author
2000Isochirotherium gierlinskii Ptaszynski p. 164

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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
speciesgierlinskii

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 gierlinskii Ptaszynski 2000
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Diagnosis
ReferenceDiagnosis
T. Ptaszynski 2000Small Isochirotheriurn with first four pes digits subequal in length but having typical length relations III>II>IV>I. Pes digit V relatively long, diverging from the digit group I-IV under low angle,15°. Manus imprints small, more than twice shorter than those of pes. Manus surface is about four times smaller than that of pes. The divarication of manus digits I-IV high, up to 84°; that of I-V ranges between 80 and 120°. Cross axis angle 70°.
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: Olenekian or 251.20000 to 247.20000 Ma

Collections (2 total)


Time interval Ma Country or state Original ID and collection number
Spathian251.3 - 247.2Poland (Swietoryzskie) Isochirotherium gierlinskii (type locality: 118063)
Olenekian251.2 - 247.2Morocco (Marrakech-Tensift-Al Haouz) Isochirotherium gierlinskii (149976)