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Alexornis antecedens

Reptilia - Avetheropoda - Alexornithidae

Taxonomy
Alexornis antecedens was named by Brodkorb (1976). Its type specimen is LACM 33213, a limb element (distal 10 mm of right humerus), and it is a 3D body fossil. Its type locality is southwest of El Rosario, which is in a Santonian terrestrial horizon in the La Bocana Roja Formation of Mexico.

Synonymy list
YearName and author
1976Alexornis antecedens Brodkorb p. 68
1982Alexornis antecedens Morris pp. 487-488
1991Alexornis antecedens Chiappe
1994Alexornis antecedens Chiappe and Calvo p. 236

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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()
Eosuchia()
Neodiapsida
SauriaGauthier 1984
Archosauromorpha(Huene 1946)
RankNameAuthor
Crocopoda
ArchosauriformesGauthier 1986
Eucrocopoda
Archosauria()
informalAvemetatarsalia
Ornithodira
Dinosauromorpha
Dinosauriformes
Dinosauria()
Saurischia()
Theropoda()
Neotheropoda
AverostraPaul 2002
Tetanurae
orderAvetheropoda
suborderCoelurosauria
Maniraptora
Paraves
classAves
PygostyliaChiappe 2002
Ornithothoraces
subclassEnantiornithes
orderAlexornithiformes
familyAlexornithidae
genusAlexornis
speciesantecedens

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
No diagnoses are available