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Amplibuteo concordatus

Reptilia - Accipitriformes - Accipitridae

Taxonomy
Amplibuteo concordatus was named by Emslie and Czaplewski (1999). Its type specimen is UF 159426, a limb element (right carpometacarpus), and it is a 3D body fossil. Its type locality is Haile 7C, which is in a Pleistocene terrestrial horizon in Florida.

Synonymy list
YearName and author
1999Amplibuteo concordatus Emslie and Czaplewski p. 186 fig. 1

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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
RankNameAuthor
Diapsida()
Archosauromorpha(Huene 1946)
Crocopoda
ArchosauriformesGauthier 1986
Eucrocopoda
Archosauria()
informalAvemetatarsalia
Ornithodira
Dinosauromorpha
Dinosauriformes
Dinosauria()
Theropoda()
Tetanurae
Coelurosauria()
Maniraptora
Paraves
classAves
orderAccipitriformesVieillot 1816
familyAccipitridaeViellot 1816
genusAmplibuteoCampbell 1979
speciesconcordatus

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.

Amplibuteo concordatus Emslie and Czaplewski 1999
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Diagnosis
ReferenceDiagnosis
S. D. Emslie and N. J. Czaplewski 1999Differs from Amplibuteo woodwardi (L. Miller) and A. hibbardi in the following characteristics. Carpometacarpus (UF 159426, AMNH 10395; Figure 1) with metacarpal I relatively large, with little or no proximal curvature; deep, narrow fossa present on internal surface of metacarpal I below pisiform process; internal ligamental fossa moderately to deeply excavated; and area between pisiform and carpal trochlea relatively small (carpometacarpus larger, metacarpal I relatively smaller, with distinct proximal curvature, fossa below pisiform shallow and broad, area of internal ligamental fossa relatively greater in Amplibuteo woodwardi («=4) and A. hibbardi). Coracoid with relatively short, narrow coraco-humeral surface (long and broad in A. woodwardi {n=5), short and broad in .4. hibbardi); pneumatic foramina below brachial tuberosity small and indistinct (shallow to deep in A. woodwardi). Humerus (Figure 3) with internal tuberosity relatively narrow and less blunt (large and blunt in A. woodwardi («=9), rounded in A. hibbardi); distinct excavation at distal end of medial bicipital crest (deep in A hibbardi; deep to shallow or absent in A. woodwardi); ligamental furrow relatively narrow and deep (furrow broad, shallow to deep in A. woodwardi); bicipital crest merges with shaft immediately below pneumatic foramen (merges with shaft more distal to pneumatic foramen, forming a distinct flange, in A. woodwardi and A. hibbardi); attachment for anterior articular ligament relatively flat, long, and narrow (flat to convex, short and broad to long and narrow in A. woodwardi, short and rounded in A. hibbardi); impression of M. brachialis anticus relatively narrow (broad in A. woodwardi); and entepicondylar and ectepicondylar prominences relatively small (larger and more robust in A. woodwardi). Ulna with bicipital attachment relatively high on shaft (attachment more distal on shaft in A. woodwardi («=3) and A. hibbardi); prominence for anterior articular ligament relatively small (large and robust in A. woodwardi and A. hibbardi); distal external condyle relatively long and narrow (short and broad in A. woodwardi and A. hibbardi); and carpal and radial tuberosities prominent (reduced in A. woodwardi, more prominent in A. hibbardi). Radius with ligamental prominence relatively small and blunt (large with more distal extension in A. woodwardi («=2) and ,A. hibbardi); scapholunar facet in distal view relatively short and narrow (long and broad in A. woodwardi).