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Abelichnus astigarrae

Reptilia - Avetheropoda

Taxonomy
Abelichnus astigarrae was named by Calvo (1991). It is considered to be a form taxon. Its type specimen is MUCPv 74 (plastotype), a footprint, and it is a trace fossil. Its type locality is Peninsula Nueva tracksite (level 2), which is in a Cenomanian delta plain sandstone in the Candeleros Formation of Argentina.

Synonymy list
YearName and author
1991Abelichnus astigarrae Calvo p. 250 figs. 9, 18, 20
1999Abelichnus astigarrae Calvo p. 35
2004Abelichnus astigarrae Calvo and Mazzetta p. 550
2007Abelichnus astigarrae Calvo p. 321
2012Abelichnus astigatarrae Jiménez Hernández et al. p. 35
2020Abelichnus astigarrae Bessedik et al. p. 38
2020Abelichnus astigarrae Krapovickas et al. p. 457

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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
orderAvetheropoda
infraorderCarnosauria()
genusAbelichnus
speciesastigarrae

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.

†Abelichnus astigarrae Calvo 1991
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Diagnosis
ReferenceDiagnosis
J. O. Calvo 1991La misma del género.
J. O. Calvo 2007Giant biped and tridactyl theropod tracks. Tracks have large and wide digit impressions. Digit III more developed than digits II and IV. Claw impressions are very prominent. Claw on digit III displaced inwardly. Digit IV larger than digit II, with claws displaced outward. The pace angulation is less than 150°. The heel is practically rounded, with a small surface (Calvo 1991).
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: carnivoreinfrao
Reproduction: oviparouso
Dispersal: direct/internalo
Dispersal 2: mobileo
Created: 2009-01-03 20:39:32
Modified: 2009-01-03 22:39:32
Source: infrao = infraorder, o = order
References: Marsh 1875, Benton 1983

Age range: Early/Lower Cenomanian or 99.60000 to 93.50000 Ma

Collections (2 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Cenomanian99.6 - 93.5Argentina (Neuquén) Abelichnus astigarrae (49412)
Early/Lower Cenomanian99.6 - 93.5Argentina (Mendoza) Carnosauria indet. (type locality: 98021)