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Colymbiculus udovichenkoi

Reptilia - Avetheropoda - Gaviidae

Taxonomy
Colymbiculus udovichenkoi was named by Mayr and Zvonok (2011). Its type specimen is SMF Av 545, a limb element (left humerus), and it is a 3D body fossil. Its type locality is Ikovo, which is in a Lutetian marine sandstone in Ukraine. It is the type species of Colymbiculus.

Synonymy list
YearName and author
2011Colymbiculus udovichenkoi Mayr and Zvonok p. 1354

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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)
Crocopoda
ArchosauriformesGauthier 1986
Eucrocopoda
Archosauria()
RankNameAuthor
informalAvemetatarsalia
Ornithodira
Dinosauromorpha
Dinosauriformes
Dinosauria()
Saurischia()
Theropoda()
Neotheropoda
AverostraPaul 2002
Tetanurae
orderAvetheropoda
suborderCoelurosauria
Maniraptora
Paraves
classAves
PygostyliaChiappe 2002
Ornithothoraces
OrnithuromorphaChiappe et al. 1999
subclassOrnithurae
subclassNeornithesGadow 1893
Neognathae(Pycraft 1900)
NeoavesSibley et al. 1988
NatatoresBaird 1858
Pygopodotubinares
superorderGaviomorphae
orderGaviiformesWetmore and Miller 1926
familyGaviidaeAllen 1897
genusColymbiculus
speciesudovichenkoi

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
G. Mayr and E. Zvonok 2011Small loon, the size of Colymboides
minutus and ?C. metzleri. Distinguished from Colymboides
in the following plesiomorphic features: (1) distal end of
humerus with ventral portion more ventrally protruding
(Text-fig. 5F, H); (2) ulna with smaller tuberculum carpale
(Text-fig. 5M, P).