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Sonselasuchus

Osteichthyes - Shuvosauridae

Taxonomy
Sonselasuchus was named by Armour Smith and Sidor (2026). Its type is Sonselasuchus cedrus. It was considered monophyletic by Armour Smith and Sidor (2026).

It was assigned to Shuvosauridae by Armour Smith and Sidor (2026).

Species
S. cedrus (type species)
Entered
by C. Sidor on 2026-04-16; modified by C. Sidor on 2026-04-16

Synonymy list
YearName and author
2026Sonselasuchus Armour Smith and Sidor

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
classOsteichthyes
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)
—SuchiaKrebs 1974
familyShuvosauridae
genusSonselasuchus

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.

G. †Sonselasuchus Armour Smith and Sidor 2026
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†Sonselasuchus cedrus Armour Smith and Sidor 2026
Diagnosis
ReferenceDiagnosis
E. Armour Smith and C. A. Sidor 2026Shuvosaurid poposauroid with the following autapomorphies: enlarged subnarial foramen formed by the premaxilla and maxilla; premaxilla narial fossa expanded ante- roventrally; anterior process of maxilla extremely thin and reduced, forming deeply embayed posterior margin of the external naris; anteroventral embayment of antorbital fenestra; expanded facet of posterior process of maxilla mediolaterally compressed and spatulate; longitudinal groove on dorsal surface of anterior process of pterygoid; posterior expansion or curvature of transverse flange of the pterygoid; quadrate with sharp ridge on its anterolateral surface. Additional differ- entially diagnostic features include: dorsal margin of orbit formed by frontal is less dorsally arcuate than in S. inexpecta- tus, and is more like E. okeeffeae; lateral articular condyle of the quadrate more anteroposteriorly constricted than in Shuvosaurus and Effigia; dentary with a relatively anteropos- teriorly long ramus anterior to the external mandibular fenestra, unlike the more anteriorly located external mandibu- lar fenestra of Effigia. Features of the calcaneum that differ from S. inexpectatus, but are missing in E. okeeffeae include: a mediolaterally compressed, pointed calcaneal tuber; a distally emarginated area between the calcaneal tuber and articulation with distal tarsal four; and a mediolaterally constricted articulation surface with distal tarsal four.
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialsubc
Locomotion: actively mobilec
Life habit: planktonicp
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, p = phylum
References: Carroll 1988, Benton 1983, Hendy et al. 2009, Bambach et al. 2007, Kiessling 2004

Age range: Norian or 227.30000 to 205.70000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Norian227.3 - 205.7USA (Arizona) S. cedrus (207035)