PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Alexornithiformes

Reptilia - Alexornithiformes

Taxonomy

Alexornithiformes was named by Brodkorb (1976). It is not extant.

It was assigned to Aves by Brodkorb (1976); to Enantiornithes by Kurochkin (1996) and Panteleyev (1998); and to Enantiornithes by Kurochkin (2000).

Subtaxa

Alexornithidae (syn. Zhyraornithidae, Gobipterygidae), Catenoleimus, Enantiornithidae

Synonymy list

Year	Name and author
1976	Alexornithiformes Brodkorb p. 67
1996	Alexornithiformes Kurochkin
1998	Alexornithiformes Panteleyev
2000	Alexornithiformes Kurochkin p. 533

Is something missing? Join the Paleobiology Database and enter the data

Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Deuterostomia
phylum	Chordata	Haeckel 1874
subphylum	Vertebrata
superclass	Gnathostomata
—	Osteichthyes	()
subclass	Sarcopterygii	()
subclass	Dipnotetrapodomorpha	(Nelson 2006)
subclass	Tetrapodomorpha	()
—	Tetrapoda
—	Reptiliomorpha
—	Anthracosauria
subclass	Amphibiosauria	Kuhn 1967
—	Cotylosauria	()
—	Amniota
—	Sauropsida
class	Reptilia
subclass	Eureptilia	()
—	Romeriida
—	Diapsida	()
—	Archosauromorpha	(Huene 1946)

Rank	Name	Author
—	Crocopoda
—	Archosauriformes	Gauthier 1986
—	Eucrocopoda
—	Archosauria	()
informal	Avemetatarsalia
—	Ornithodira
—	Dinosauromorpha
—	Dinosauriformes
—	Dinosauria	()
—	Theropoda	()
—	Neotheropoda
—	Averostra	Paul 2002
—	Tetanurae
—	Coelurosauria	()
—	Maniraptora
—	Paraves
class	Aves
—	Pygostylia	Chiappe 2002
—	Ornithothoraces
subclass	Enantiornithes
order	Alexornithiformes
order	Alexornithiformes

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.

Or. †Alexornithiformes Brodkorb 1976

show all | hide all

Fm. †Alexornithidae Brodkorb 1976

hide

G. †Abavornis Panteleyev 1998

†Abavornis bonaparti Panteleyev 1998

G. †Alexornis Brodkorb 1976

†Alexornis antecedens Brodkorb 1976

G. †Explorornis Panteleyev 1998

†Explorornis nessovi Panteleyev 1998

G. †Incolornis Panteleyev 1998

†Incolornis silvae Panteleyev 1998

G. †Kizylkumavis Nessov 1984

†Kizylkumavis cretacea Nessov 1984

G. †Lenesornis Kurochkin 1996

†Lenesornis maltshevskyi Nessov 1986

G. †Nanantius Molnar 1986

†Nanantius eos Molnar 1986

G. †Sazavis Nessov 1989

†Sazavis prisca Nessov 1989

G. †Zhyraornis Nessov 1984

†Zhyraornis kashkarovi Nessov 1984

†Zhyraornis logunovi Nessov 1992

Invalid names: Gobipterygidae Elzanowski 1974 [synonym], Zhyraornithidae Nessov 1984 [synonym]

G. †Catenoleimus Panteleyev 1998

hide

†Catenoleimus anachoretus Panteleyev 1998

Fm. †Enantiornithidae

hide

G. †Gurilynia Kurochkin 1999

†Gurilynia nessovi Kurochkin 1999

Diagnosis

No diagnoses are available

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:

carnivoresubo

Reproduction:

oviparouso

Dispersal:

direct/internalo

Dispersal 2:

mobileo

Created:

2009-01-03 20:39:15

Modified:

2009-01-03 22:39:15

Source: subo = suborder, o = order

References: Marsh 1875, Benton 1983

Age range: base of the Late/Upper Albian to the top of the Early/Lower Maastrichtian or 105.30000 to 66.00000 Ma

Collections (11 total)

Time interval	Ma	Country or state	Original ID and collection number
Late/Upper Albian	105.3 - 99.6	Australia (Queensland)	Enantiornithes indet. (122712) Nanantius eos (85237)
Early/Lower Cenomanian	99.6 - 93.5	Uzbekistan (Karakalpakstan)	Zhyraornis kashkarovi (58490)
Middle Turonian - Late/Upper Turonian	93.5 - 89.3	Uzbekistan (Navoi)	Abavornis bonaparti (93204) Ichthyornis maltshevskyi, Alexornithiformes indet., Sazavis prisca, Explorornis sp. 1, Explorornis sp. 2, Explorornis nessovi, Catenoleimus anchoretus (58168) Kizylkumavis cretacea (75943) Sazavis prisca, Zhyraornis logunovi, Incolornis silvae, Abavornis sp. (58166) Zhyraornis kashkarovi (58165)
Santonian	86.3 - 83.6	Mexico (Baja California)	Alexornis antecedens (13312)
Maastrichtian	72.1 - 66.0	Mongolia	Gurilynia nessovi (84444)
Early/Lower Maastrichtian	70.6 - 66.0	Romania (Alba)	Enantiornithidae indet. (80859)