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Patagomaia chainko

Osteichthyes

Discussion

The correct Type locality is 234528, based in direct GPS LACEV corroboration.

Taxonomy
Patagomaia chainko was named by Chimento et al. (2024). Its type specimen is MPM-PV-23365, a set of limb elements (Distal end of the lef ulna, two fragments of the preacetabular wing of the lef ilium, acetabular region of the lef hemipelvis, fragment of the ischial blade, pr), and it is a 3D body fossil. Its type locality is La Anita (Puma cave site), which is in a Maastrichtian terrestrial claystone in the Chorrillo Formation of Argentina.

Synonymy list
YearName and author
2024Patagomaia chainko Chimento et al. p. 2
2024Patagomaia chainko Püschel et al.
2025Patagomaia chainko Chimento et al.

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
classOsteichthyes
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
RankNameAuthor
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
subclassSynapsida
—Therapsida()
infraorderCynodontia()
—Mammaliamorpha
—Mammaliaformes
classMammalia
—Allotheria()
suborderGondwanatheriaMones 1987
genusPatagomaia
specieschainko

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.

†Patagomaia chainko Chimento et al. 2024
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Diagnosis
ReferenceDiagnosis
N. R. Chimento et al. 2024Te same as for genus by monotypy: Patagomaia is a large mammal (~14 kg) distinguished by the following unique combination of character states: fused acetabulum with a complete rim lacking a dorsal emargination; femur with subspherical head having a well-defned fovea capitis; femur head separated from the rest of the bone by a well-defned and medially tilted neck; lesser trochanter of femur small and located on the posteromedial surface of the shaf; distal end of femur with nearly symmetrical distal condyles and reduced epicondyles. Patagomaia further difers from other Mesozoic mammals in having the autapomorphic condition of a thick, well-defned, and obliquely oriented intercondylar ridge delimiting a deep fossa at the distal end of the femur.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialc
Locomotion: actively mobilec
Life habit: scansorialuc
Diet: insectivoreuc
Created: 2005-09-06 19:53:51
Modified: 2005-09-07 19:44:02
Source: c = class, subp = subphylum, uc = unranked clade
References: Luo et al. 2003, Carroll 1988, Hendy et al. 2009, Hopson 1973
Collections
No collection or age range data are available