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Hesperornis

Reptilia - Avetheropoda - Hesperornithidae

Synonyms
Synonymy list
YearName and author
1872Hesperornis Marsh pp. 360-363
1875Hesperornis Marsh p. 407
1876Lestornis Marsh p. 509
1880Hesperornis Marsh p. 187
1890Hesperornis Zittel p. 827
1893Coniornis Marsh p. 82 figs. 1-3
1903Hargeria Lucas p. 552
1915Coniornis Shufeldt p. 12
1976Hesperornis Martin and Tate, Jr. p. 64
1984Hesperornis Martin p. 146
1986Hesperornis Bakker p. 460
1988Coniornis Carroll
1988Hesperornis Carroll
1991Hesperornis Chatterjee p. 328
2001Hesperornis Norell and Clarke p. 183
2002Hesperornis Chiappe p. 451 fig. 20.1
2002Hesperornis Sepkoski, Jr.
2004Hesperornis Padian p. 213
2005Hesperornis Rees and Lindgren p. 1322
2013Hesperornis Kurochkin et al.
2013Hesperornis O'Connor and Zelenkov
2014Hesperornis O'Connor et al.
2014Hesperornis Wang et al.
2015Hesperornis Wang and Liu

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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
OrnithuromorphaChiappe et al. 1999
subclassOrnithurae
orderHesperornithiformesFürbringer 1888
familyHesperornithidae()
genusHesperornis

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
S. Chatterjee 1991Apomorphous features of Hesperornis
(26) Reverse peg and socket joint between pterygoid and basipterygoid; (27) short broad pterygoid with narrow, elongated palatine.
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: aquaticg
Diet: piscivoreg
Reproduction: oviparouso
Dispersal: direct/internalo
Dispersal 2: mobileo
Comments: see also Gudger 1944g
Created: 2009-01-04 11:39:19
Modified: 2009-01-05 19:23:39
Source: g = genus, o = order
References: Padian 1985, Bush and Bambach 2015, Marsh 1875

Age range: base of the Campanian to the top of the Lancian or 83.60000 to 66.00000 Ma

Collections (46 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Cretaceous100.5 - 66.0USA (Kansas) H. gracilis (156590) Lestornis crassipes (156589)
Coniacian - Campanian89.8 - 72.1USA (Alaska) H. sp. (123520)
Early/Lower Coniacian - Early/Lower Campanian89.3 - 70.6USA (Kansas) H. sp. (13301)
Late/Upper Santonian85.8 - 83.5USA (Kansas) H. regalis (85284)
Campanian83.6 - 72.1Sweden H. sp., H. rossicus (102883)
Campanian83.6 - 72.1Canada (Nunavut) H. sp. (36383)
Campanian83.6 - 72.1Canada (Northwest Territories) H. sp. (36384)
Campanian83.6 - 72.1Canada (Manitoba) H. regalis (36710 36746)
Early/Lower Campanian83.5 - 70.6Canada (Northwest Territories) H. regalis (106330 106331 106332 106334 106341)
Early/Lower Campanian83.5 - 70.6USA (South Dakota) H. sp. (39388)
Early/Lower Campanian83.5 - 70.6Russian Federation (Volgograd) H. rossica (85286)
Early/Lower Campanian83.5 - 70.6Canada (Manitoba) H. regalis (193919 193921 193924) H. regalis, H. chowi (193926 193927) H. regalis, H. chowi, H. macdonaldi (193925) H. regalis, H. lumgairi (193922) H. regalis, H. mengeli (193923) H. sp. (36446 193931 193932 193933 193934 193935 193936 193937) H. sp., H. chowi (193929) H. sp., H. macdonaldi (193930) H. sp., H. regalis, H. macdonaldi (193920)
Early/Lower Campanian83.5 - 70.6USA (Montana) H. montana (85283)
Early/Lower Campanian - Middle Campanian83.5 - 70.6Canada (Manitoba) H. sp., H. rossicus, H. chowi (193928)
Early/Lower Campanian - Middle Campanian83.5 - 70.6USA (South Dakota) H. regalis (77316) H. sp. (107676)
Late/Upper Campanian83.5 - 70.6USA (Arkansas) H. sp. (193918)
Middle Campanian83.5 - 70.6USA (Arkansas) H. sp. (193917)
Middle Campanian83.5 - 70.6Canada (Alberta) H. regalis (36379)
Middle Campanian - Late/Upper Campanian83.5 - 70.6USA (Montana) H. sp. (50825)
Late/Upper Campanian - Early/Lower Maastrichtian83.5 - 66.0Canada (Northwest Territories) H. sp. (36445)
Lancian70.6 - 66.0USA (Montana) H. sp. (14580)