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Lajasvenator ascheriae

Reptilia - Carcharodontosauridae

Taxonomy
Lajasvenator ascheriae was named by Coria et al. (2020). Its type specimen is MLL-PV-005, a partial skeleton, and it is a 3D body fossil. Its type locality is Pilmatué, which is in a Valanginian fluvial sandstone in the Mulichinco Formation of Argentina. It is the type species of Lajasvenator.

Synonymy list
YearName and author
2020Lajasvenator ascheriae Coria et al.
2021Lajasvenator ascheriae Bandeira et al. p. 14

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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
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
subclassEureptilia()
RankNameAuthor
—Romeriida
—Diapsida()
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Theropoda()
—Neotheropoda
—AverostraPaul 2002
—Tetanurae
superfamilyAllosauroidea
familyCarcharodontosauridae
genusLajasvenator
speciesascheriae

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.

†Lajasvenator ascheriae Coria et al. 2020
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Diagnosis
ReferenceDiagnosis
R. A. Coria et al. 2020medium-sized theropod with the following autapomorphies: anterior projection on cervical prezygapophyses, lip-like crest on lateral surface of cervical postzygapophyses, and cervical ribs with bilobed anterior process. The phylogenetic analysis shows that Lajasvenator has the following unique combination of features: premaxilla ventral to external naris has a height/length ratio less than 0.5 (character 2); paradental plates with striated or ridged surfaces (character 140); relatively small premaxillary teeth (character 152); cervical vertebrae with a distinct rim on each anterior articular surface (character 175) (all characters are also present in some megalosaurs); and ilium with straight dorsal margin (also in some basal theropods).
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
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: o = order
Reference: Marsh 1875

Age range: Valanginian or 139.80000 to 132.90000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Valanginian139.8 - 132.9Argentina (Neuquén) Tetanurae indet. (type locality: 193674)