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Heterochen pratensis

Osteichthyes - Anseriformes

Taxonomy
Heterochen pratensis was named by Short (1970). Its type specimen is UNSM 5781, a limb element (tarsometatarsus), and it is a 3D body fossil. Its type locality is Devil's Gulch Quarry, which is in a Barstovian terrestrial horizon in the Valentine Formation of Nebraska. It is the type species of Heterochen.

Synonymy list
YearName and author
1970Heterochen pratensis Short p. 538 figs. Figures 1, 2

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
classOsteichthyes
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
subclassEureptilia()
—Romeriida
—Diapsida()
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
RankNameAuthor
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Saurischia()
—Theropoda()
—Neotheropoda
—AverostraPaul 2002
—Tetanurae
—Coelurosauria()
—Maniraptora
—Paraves
classAves
subclassNeornithesGadow 1893
—Neognathae(Pycraft 1900)
—PangalloanseraeGauthier and de Queiroz 2001
—GalloanseraeSibley and Ahlquist 1990
superorderGalloanserimorphae
orderAnseriformesWagler 1831
genusHeterochen
speciespratensis

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.

†Heterochen pratensis Short 1970
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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: volanto
Diet: herbivoreo
Reproduction: oviparouso
Dispersal: direct/internalo
Dispersal 2: mobileo
Created: 2009-01-03 19:27:52
Modified: 2009-01-03 21:27:52
Source: o = order
References: Kiessling 2004, Marsh 1875, Sedinger 1997

Age range: Barstovian or 16.30000 to 12.50000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Barstovian16.3 - 12.5USA (Nebraska) Heterochen pratensis (type locality: 18123)