Dense aggregations of articulated ophiuroids, in external mould preservation, were discovered in the middle Miocene Duho Formation (Yeonil Group) of Pohang City, near the southeast coast of Korea. These specimens are here described as a new species, Ophiura pohangensis, which differs from congeners in having long, slender oral papillae, and tiny quadrangular arm comb papillae. The new species constitutes the first well-identified example of the class Ophiuroidea in the fossil record of Korea. Aggregation density of the new species is similar to that of occurrences of both fossil and extant Ophiura sarsii sarsii across Japan.
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1 January 2022
A New Species of Ophiura (Echinodermata, Ophiuroidea) from Miocene Deep-Sea Deposits in the Pohang Basin, Korea
Yoshiaki Ishida,
Ben Thuy,
Gi-Soo Nam,
Alexander Martynov,
Toshihiko Fujita,
Jong-Heon Kim
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Paleontological Research
Vol. 26 • No. 1
January 2022
Vol. 26 • No. 1
January 2022
Dense aggregations
Duho Formation
Neogene
Ophiuridae
paleoenvironment
taxonomy