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Baminornis

Reptilia

Taxonomy
Baminornis was named by Chen et al. (2025). Its type is Baminornis zhenghensis.

It was assigned to Avialae by Chen et al. (2025).

Species
B. zhenghensis (type species)

Synonymy list
YearName and author
2025Baminornis Chen et al. p. 441

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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()
RankNameAuthor
Romeriida
Diapsida()
Archosauromorpha(Huene 1946)
Crocopoda
ArchosauriformesGauthier 1986
Eucrocopoda
Archosauria()
informalAvemetatarsalia
Ornithodira
Dinosauromorpha
Dinosauriformes
Dinosauria()
Theropoda()
Neotheropoda
AverostraPaul 2002
Tetanurae
Coelurosauria()
Maniraptora
Avialae
genusBaminornis

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. †Baminornis Chen et al. 2025
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Baminornis zhenghensis Chen et al. 2025
Diagnosis
ReferenceDiagnosis
R. Chen et al. 2025Baminornis is distinguishable from all other avialans in the following combination of character states (*denotes probable autapomorphy): fused pygostyle that curves dorsally and is longer than metacarpal II (the three manual digits of maniraptorans are here described as I, II and III, following a previous study28)*; strut-like coracoid that is separated from the scapula; boomerang-shaped furcula with an interclavicular angle of 65°; semilunate carpal that has no contact with metacarpal III; metacarpal I that has an asymmetric ginglymoid distal articulation with enlarged medial condyle*; metacarpal III that extends further distally than metacarpal II; manual phalangeal formula 2-3-4; elongate manual phalanx I-1 1.4× longer than manual phalanx II-1; ungual of manual digit I twice as large as that of digit III*; manual digit III that has four phalanges and is shorter than metacarpal III; and ischium that lacks both the obturator and posterior processes*.