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Aphanosauria

Reptilia

Taxonomy
Aphanosauria was named by Nesbitt et al. (2017). It is not extant.

It was assigned to Avemetatarsalia by Nesbitt et al. (2017).

Synonymy list
YearName and author
2017Aphanosauria Nesbitt et al. p. 485

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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
RankNameAuthor
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
subclassEureptilia()
—Romeriida
—Diapsida()
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Aphanosauria
—Aphanosauria

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.

Unr. †Aphanosauria Nesbitt et al. 2017
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G. †Dongusuchus Sennikov 1988
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†Dongusuchus efremovi Sennikov 1988
G. †Spondylosoma Huene 1942
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G. †Teleocrater Charig 1967
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†Teleocrater rhadinus Charig 1967
G. Yarasuchus Sen 2005
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Diagnosis
ReferenceDiagnosis
S. J. Nesbitt et al. 2017Aphanosauria differs from all other archosaurs in possessing the following unique combination of character states: elongate cervical vertebrae with epipophyses and anteriorly overhanging neural spines that have rugose lateral margins on their dorsal ends; elongated deltopectoral crest that is at least 35% the length of the humerus; wide distal end of the humerus; femur with a scar for the M. iliofemoralis externus near the proximal surface (homologous with the anterior trochanter in dinosauromorphs) that is separate from the scar for the M. iliotrochantericus caudalis (homologous with the trochanteric shelf in dino- sauromorphs), without an anteromedial tuber, and with a straight, deep groove in the proximal surface; calcaneal tuber taller than broad (see Supplementary Information).
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Created: 2017-04-17 15:16:03
Modified: 2017-04-17 15:16:03
Source: subc = subclass, c = class, subp = subphylum
References: Carroll 1988, Hendy et al. 2009

Age range

Maximum range based only on fossils: base of the Anisian to the top of the Ladinian or 247.20000 to 237.00000 Ma
Minimum age of oldest fossil (stem group age): 242.0 Ma

Collections (10 total)


Time interval Ma Country or state Original ID and collection number
Anisian247.2 - 242.0Russian Federation (Orenburg) Dongusuchus efremovi (28850 189562)
Anisian247.2 - 242.0India (Andhra Pradesh) Yarasuchus deccanensis (89952)
Anisian247.2 - 242.0Russian Federation (Bashkortostan) Dongusuchus efremovi (97415)
Anisian247.2 - 242.0Tanzania (Ruvuma) Teleocrater rhadinus (185533 187940 192598)
Ladinian242.0 - 237.0Brazil (Rio Grande do Sul) Spondylosoma absconditum (48659 99365 99415)