PBDB Taxon

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Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Asiahesperornis

Reptilia - Theropoda

Taxonomy

Asiahesperornis was named by Nessov and Prizemlin (1991). Its type is Asiahesperornis bazhanovi. It is the type genus of Asiahesperornithinae.

It was assigned to Asiahesperornithinae by Nessov and Prizemlin (1991) and Kurochkin (2000); to Hesperornidae by Dyke et al. (2006); and to Hesperornithidae by Bell and Chiappe (2020).

Species

A. bazhanovi (type species)

Synonymy list

Year	Name and author
1991	Asiahesperornis Nessov and Prizemlin p. 101
2000	Asiahesperornis Kurochkin p. 546
2006	Asiahesperornis Dyke et al. p. 948
2020	Asiahesperornis Bell and Chiappe

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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	()
order	Theropoda
—	Neotheropoda
—	Averostra	Paul 2002
—	Tetanurae
—	Coelurosauria	()
—	Maniraptora
—	Avialae
—	Ornithothoraces
—	Ornithuromorpha	Chiappe et al. 1999
subclass	Ornithurae
order	Hesperornithiformes	Fürbringer 1888
—	Hesperornithidae	()
genus	Asiahesperornis

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.

G. †Asiahesperornis Nessov and Prizemlin 1991

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†Asiahesperornis bazhanovi Nessov and Prizemlin 1991

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:

marineo

Locomotion:

actively mobileo

Life habit:

ground dwellingo

Diet:

carnivoresubo

Reproduction:

oviparouso

Dispersal:

direct/internalo

Dispersal 2:

mobileo

Created:

2017-04-17 10:39:36

Modified:

2017-04-17 10:39:36

Source: subo = suborder, o = order

References: Marsh 1875, Bush and Bambach 2015, Benton 1983

Age range: base of the Maastrichtian to the top of the Early/Lower Maastrichtian or 72.10000 to 66.00000 Ma

Collections (2 total)

Time interval	Ma	Country or state	Original ID and collection number
Late/Upper Campanian - Early/Lower Maastrichtian	83.5 - 66.0	Russian Federation (Volgograd)	Hesperornithiformes indet. (38075)
Maastrichtian	72.1 - 66.0	Kazakhstan (Qostanay)	A. bazhanovi (59383)