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New bird remains from the Middle Eocene of Guangdong, China

100%

Wang M., Mayr G., Zhang J., Zhou Z.

Acta Palaeontologica Polonica

2012

tom 57

nr 3

We describe a new avian taxon (Sanshuiornis zhangi gen. et sp. nov.) from Middle Eocene black oil shales in the Huayong Formation of Guangdong Province, south China. The specimen consists of a distal tibiotarsus and a complete foot with tarsometatarsus and pedal digits in articulation. A preliminary phylogenetic analysis does not resolve the affinities of the fossil, but the bones show resemblances to some “ciconiiform” birds. The peculiar hypotarsus morphology, which is block−like and exhibits four cristae, resembles that of the early Eocene Rhynchaeites, which is a stem group representative of the Threskiornithidae. The new Chinese fossil has, however, proportionally longer legs than Rhynchaeites and its phylogenetic affinities probably cannot be resolved without further material.

Ograniczanie wyników

1 Acta Palaeontologica Polonica

1 Mayr G.

1 Wang M.

1 Zhang J.

1 Zhou Z.

1 2012

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New bird remains from the Middle Eocene of Guangdong, China