[dinosaur] Pterosaur wing phalanx from Lower Cretaceous of South Korea (free pdf)

[Ben Creisler <bcreisler@gmail.com>]

Ben Creisler

bcreisler@gmail.com

A recent paper with free pdf:

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Jin-Young Park, Sungjin Lee, Su-Hwan Kim, Minyoung Son & Yuong-Nam Lee (2020)
A pterosaur wing phalanx from the Lower Cretaceous Hasandong Formation of Hadong-gun, Gyeongsangnam-do, South Korea.
Journal of the Geological Society of Korea 56(1):77-84 (in Korean)
DOI: https://doi.org/10.14770/jgsk.2020.56.1.77
http://jgsk.or.kr/_common/do.php?a=current&b=41&bidx=1879&aidx=23133

Free pdf:

http://jgsk.or.kr/xml/23133/23133.pdf


A partial second wing phalanx of a pterosaur was discovered from the coastal outcrop of Dae Island (Hasandong Formation, Aptian), Geumnam-myeon, Hadong-gun, Gyeongsangnam-do, South Korea. It is assigned to cf. Boreopteridae based on the comparisons to other Early Cretaceous Asian pterosaurs in shape and size. The estimated manus and pes size of this specimen is heteropodous and much larger than those of the pterosaur ichnotaxon Pteraichnus koreanensis, which was known from the same formation, suggesting there were at least two groups of pterosaurs co-existed during the Hasandong time. Since boreopterids have only been reported from the Lower Cretaceous Yixian Formation (Aptian) of China, this new specimen not only represents the first record of boreopterids outside of the Yixian Formation but their distribution was also greatly extended to the southeast. Moreover, the occurrence in the fluvial deposits suggests that boreopterids also lived in the riparian environment as well as lacustrine one.

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