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Piatnitzkysauridae

Reptilia - Piatnitzkysauridae

Synonymy list
YearName and author
2012Piatnitzkysauridae Carrano et al. p. 251
2013Piatnitzkysauridae Hanson and Makovicky p. 781
2016Piatnitzkysauridae Rauhut et al. p. 38

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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
Sauropsida
classReptilia
subclassEureptilia()
Romeriida
Diapsida()
RankNameAuthor
Eosuchia()
Neodiapsida
SauriaGauthier 1984
Archosauromorpha(Huene 1946)
Crocopoda
ArchosauriformesGauthier 1986
Eucrocopoda
Archosauria()
informalAvemetatarsalia
Ornithodira
Dinosauromorpha
Dinosauriformes
Dinosauria()
Saurischia()
Theropoda()
Neotheropoda
AverostraPaul 2002
Tetanurae
Orionides
superfamilyMegalosauroidea()
familyPiatnitzkysauridae
familyPiatnitzkysauridae

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. T. Carrano et al. 2012Megalosauroids possessing the following synapomor phies: (1) two parallel rows of nutrient foramina on lateral surface of maxilla (21(1)); also in Eocarcharia and Shaochilong); (2) vertically striated or ridged paradental plates (140(1)); also in abelisaurids, Megalosaurus and Proceratosaurus); (3) reduced axial parapophyses (166(1)); also in coelophysoids, Eustreptospondylus and Afrovenator); (4) anteriorly inclined posterior dorsal neural spines (192(1)); in parallel with Allosauroidea); and (5) canted distal humeral condyles (236(1)); also in Poekilopleuron, Allosauridae and Fukuiraptor). In addition, among tetanurans these taxa show reversals to the primitive condition for the following features: (1) a short or absent anterior maxillary ramus (12(0)); (2) moderate development of axial diapophyses (167(0)); and (3) no axial pleurocoels (168(0)).
Measurements
No measurements are available
Composition: hydroxyapatiteo
Entire body: yeso
Adult length: 10 to < 100o
Adult width: 1.0 to < 10o
Adult height: 1.0 to < 10o
Maximum body mass: 1000 kgg
Minimum body mass: 100 kgg
Architecture: compact or denseo
Ontogeny: accretion, modification of partso
Grouping: solitaryo
Environment: terrestrialo
Locomotion: actively mobileo
Life habit: ground dwellingo
Diet: carnivoreo
Reproduction: oviparouso
Dispersal: direct/internalo
Dispersal 2: mobileo
Created: 2004-12-14 12:50:08
Modified: 2004-12-14 14:50:08
Source: g = genus, o = order
References: Marsh 1875, Peczkis 1995

Age range: base of the Middle Jurassic to the top of the Kimmeridgian or 174.10000 to 152.10000 Ma

Collections (7 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Toarcian - Early/Lower Bajocian180.1 - 168.4Argentina (Chubut) Condorraptor currumili (46550 75891) Piatnitzkysaurus floresi (28534)
Middle Jurassic174.1 - 163.5China (Sichuan) Xuanhanosaurus qilixiaensis (28232)
Kimmeridgian157.3 - 152.1USA (Utah) Marshosaurus bicentesimus (46439)
Kimmeridgian - Tithonian157.3 - 145.0USA (Utah) Megalosauridae indet. (55350)
Late/Upper Kimmeridgian - Early/Lower Tithonian155.7 - 145.0USA (Colorado) Marshosaurus bicentesimus (45975)