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Pannoniasaurus inexpectatus

Reptilia - Squamata

Taxonomy
Pannoniasaurus inexpectatus was named by Makádi et al. (2012) [urn:lsid:zoobank.org:act:3DD4ED72-9F20-4D87-85B6-2C1D81DBA6E8]. Its type specimen is MTM 2011.43.1., a partial skull (right quadrate), and it is a 3D body fossil. Its type locality is Iharkút mine, Bakony mountains, which is in a Santonian fine channel fill claystone/sandstone in the Csehbánya Formation of Hungary.

Synonymy list
YearName and author
2012Pannoniasaurus inexpectatus Makádi et al. p. 6 figs. 3-7
2014Pannoniasaurus inexpectatus Fanti et al.

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
phylumChordataHaeckel 1847
subphylumVertebrata
superclassGnathostomata
Osteichthyes()
Sarcopterygii
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
Tetrapoda()
Reptiliomorpha
Anthracosauria
Batrachosauria()
Cotylosauria()
Amniota
RankNameAuthor
Sauropsida
classReptilia
subclassEureptilia()
Romeriida
Diapsida()
Eosuchia()
Neodiapsida
SauriaGauthier 1984
Lepidosauromorpha(Benton 1983)
superorderLepidosauria()
orderSquamata
Episquamata
ToxicoferaVidal and Hedges 2005
superfamilyMosasauroidea(Marsh 1880)
subfamilyTethysaurinae
genusPannoniasaurus
speciesinexpectatus

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
L. Makádi et al. 2012Medium-sized (max. 6 meters) mosasauroid with following combination of characters: quadrate stapedial pit length/width ratio of 3:1; saddle-shaped mandibular condyle of quadrate; quadrate shaft, distal to the conch and infrastapedial process, long and gracile; large infrastapedial process; long suprastapedial process with tip angled medially; dorsoventrally flattened, laterally wide, violin-shaped premaxilla in dorsal view; high dorsal process on coronoid; teeth with carinae and anastomosing longitudinal striae; hypapophyseal peduncles with circular articulation surface; large ventrolateral crests on cervicals; parazygosphenal and paracotylar foramina absent; well-developed precondylar constriction on precaudal vertebrae; ribs with oval heads.