|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Reptilia - Avetheropoda - Gaviidae
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. Mayr and E. Zvonok 2011||Small 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).