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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

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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
orderAvetheropoda
Carnosauria()
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.

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: Benton 1983, Marsh 1875

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 (Mendoza) Carnosauria indet. (type locality: 98021)
Early/Lower Cenomanian99.6 - 93.5Argentina (Neuquén) Abelichnus astigarrae (49412)