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Elemgasem nubilus

Osteichthyes - Abelisauridae

Taxonomy
Elemgasem nubilus was named by Baiano et al. (2022). Its type specimen is MCF-PVPH-380, a partial skeleton, and it is a 3D body fossil. Its type locality is Sierra del Portezuelo locality, c. 20 km west of Cutral-Có city, which is in a Turonian/Coniacian fluvial sandstone/mudstone in the Portezuelo Formation of Argentina. It is the type species of Elemgasem.

Synonymy list
YearName and author
2022Elemgasem nubilus Baiano et al.

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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()
—Amniota
—Sauropsida
classReptilia
subclassEureptilia()
—Romeriida
RankNameAuthor
—Diapsida()
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Saurischia()
—Theropoda()
—Neotheropoda
—AverostraPaul 2002
suborderCeratosauria()
familyAbelisauridae
—Brachyrostra
—Furileusauria
genusElemgasem
speciesnubilus

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.

†Elemgasem nubilus Baiano et al. 2022
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Diagnosis
ReferenceDiagnosis
M. A. Baiano et al. 2022Elemgasem nubilus is an abelisaurid distinguished from other theropods in having the following combination of characters (*autapomorphy): (1) posterior caudal vertebrae with oval articular surfaces of the centra, being transversely wider than dorsoventrally high; (2) posterior caudal centra with an anteroposterior groove on the ventral surface; (3) *marked rugosity formed by ridges and tubercles on the lateral surface of
the proximal fibula; (4) *a proximal high wall of the astragalus–calcaneum separating the tibia from the fibula observed laterally; and (5) *a dorsoventrally deep lateral surface of the calcaneum.
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
References: Marsh 1875, Kiessling 2004

Age range: base of the Late/Upper Turonian to the top of the Early/Lower Coniacian or 93.90000 to 85.70000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Late/Upper Turonian - Early/Lower Coniacian93.9 - 85.7Argentina ( Neuquén) Elemgasem nubilus (type locality: 230241)