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Suminia

Synonymy list
YearName and author
1994Suminia Ivakhnenko
2000Suminia Battail and Surkov
2003Suminia Ivakhnenko
2008Suminia Ivakhnenko
2009Suminia Kammerer and Angielczyk
2011Suminia Fröbisch and Reisz

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
RankNameAuthor
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
Synapsida()
Therapsida()
Anomodontia(Owen 1859)
Venyukovioidea
genusSuminia

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.

Diagnosis
ReferenceDiagnosis
M. F. Ivakhnenko 1994Skull short and high; height at level of middle of orbital length fitting approximately 2.5 times into skull length, and length of its preorbital part 3 times. Tooth row of upper jawbone horizontal, quite long, and in upper jaw having up to 12 teeth. Dentary bone of lower jaw fairly low, almost not exceeding height of anterior incisors. Zygomatic arch convex upward approximately to level of middle of hight orbit.
J. Fröbisch and R. R. Reisz 2011Small venyukovioid characterized by the following autapomorphies: large orbit, nearly one-third of skull length; frontal–parietal suture occurring at rim of pineal foramen; postorbital–squamosal contact present ventrally (convergent with Chainosauria); teeth large relative to skull; wear facets nearly parasagittal; tooth wear striations indicate propalinal motion of mandible that extends each dentary tooth
across at least two maxillary teeth; reduced number of 23 presacral and therein 17 dorsal vertebrae; centra of cervical vertebrae longer than wide, indicating an elongate neck; transverse processes of caudal vertebrae fuse to long caudal ribs; procoracoid with indentation at ventromedial margin rather than foramen; iliac blade with robust ridge on anterior edge of medial surface; pubis with puboischiadic
fenestra and separate pubic foramen; limbs elongated; manus equals 40% of forelimb length; distal carpal 1 and tarsal 1 enlarged, phalangiform, and diverge laterally; metacarpal I short and robust; crescent-shaped distal tarsal 4; penultimate phalanges
elongated; manual phalangeal formula 2-3-4-5-3 and pedal phalangeal formula 2-3-4-5-4, with discshaped phalangeal elements in digits III and IV (manus and pes) and digit V (pes only).
Measurements
No measurements are available
Composition: phosphaticsubp
Environment: terrestrialuc
Locomotion: actively mobilec
Diet: herbivoreo
Created: 2009-01-03 20:33:20
Modified: 2009-01-03 22:33:20
Source: o = order, c = class, subp = subphylum, uc = unranked clade
References: Kiessling 2004, Benton 1983, Carroll 1988, Hendy et al. 2009

Age range: Late/Upper Severodvinian or 265.00000 to 254.00000 Ma

Collections (6 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Severodvinian265.0 - 254.0Russian Federation (Orenburg) S. getmanovi (189501) S. sp. (189503)
Late/Upper Severodvinian265.0 - 254.0Russian Federation (Vologda) S. getmanovi (189125) S. sp. (187752 187928)
Early/Lower Severodvinian265.0 - 252.3Russian Federation (Kirov) S. getmanovi (28854)