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New leaf-mine fossil from the Geumgwangdong Formation, Pohang Basin, South Korea, associates pygmy moths (Lepidoptera, Nepticulidae) with beech trees (Fagaceae, Fagus) in the Miocene

Published online by Cambridge University Press:  26 December 2018

Jae-Cheon Sohn
Affiliation:
Institute of Littoral Environment, Mokpo National University, Muan, Jeonnam 58554, Republic of Korea, and Department of Science Education, Gongju National University of Education, Gongju, Chungnam 32553, Republic of Korea
Camiel Doorenweerd
Affiliation:
Department of Plant and Environmental Protection Sciences, College of Tropical Agriculture and Human Resources, University of Hawaii, Honolulu, Hawaii 96822, USA
Kye Soo Nam
Affiliation:
Daejeon Science High School for the Gifted, Daejeon 34142, Republic of Korea
Sei-Woong Choi
Affiliation:
Department of Environmental Education, Mokpo National University, Muan, Jeonnam 58554, Republic of Korea

Abstract

A nepticulid leaf-mine ichnofossil, Stigmellites janggi Sohn and Nam, n. ichnosp., is described on the basis of a fossil leaf of Fagus from the early Miocene Geumgwangdong Formation in Pohang Basin. This mine trace is characterized by a linear-blotch type with a clear centric frass trail composed of closely and randomly dispersed pellets filling the mine width in the early stage. We found traces of a possible egg case and an exit slit from the leaf. These features are most consistent with those produced by members of Nepticulidae. Our record demonstrates for the first time the trophic association of Nepticulidae with Fagus in the Miocene and suggests the persistence of a long-term association between the insect family and the plant genus from the Miocene to the present. Other Nepticulidae leaf mines in the Miocene and leaf-mine fossils from the Geumgwangdong Formation are briefly reviewed.

UUID: http://zoobank.org/fff951f6-ca82-4cca-a274-863e0d91acaa

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Articles
Copyright
Copyright © 2018, The Paleontological Society 

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