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Palaeastur atavus

Reptilia - Accipitriformes - Accipitridae

Taxonomy
Palaeastur atavus was named by Wetmore (1943). Its type specimen is H. C. 693, a limb element (distal end of right metatarsus), and it is not a trace fossil. Its type locality is Stenomylus Quarry, which is in a Harrisonian terrestrial horizon in the Harrison Formation of Nebraska.

Synonymy list
YearName and author
1943Palaeastur atavus Wetmore p. 230
1956Palaeastur atavus Wetmore p. 46

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
subclassEureptilia()
—Romeriida
—Diapsida()
RankNameAuthor
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Theropoda()
—Neotheropoda
—AverostraPaul 2002
—Tetanurae
—Coelurosauria()
—Maniraptora
—Paraves
classAves
orderAccipitriformesVieillot 1816
familyAccipitridaeViellot 1816
genusPalaeastur
speciesatavus

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.

†Palaeastur atavus Wetmore 1943
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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: terrestrialf
Locomotion: actively mobileo
Life habit: volantf
Diet: carnivoref
Reproduction: oviparouso
Dispersal: direct/internalo
Dispersal 2: mobileo
Created: 2009-01-03 16:32:13
Modified: 2009-01-03 18:32:13
Source: f = family, o = order
References: Marsh 1875, Naka 2004

Age range: Harrisonian or 24.80000 to 18.50000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Harrisonian24.8 - 18.5USA (Nebraska) Palaeastur atavus (type locality: 17845)