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Sohn, Jae-Cheon,Doorenweerd, Camiel,Nam, Kye Soo,Choi, Sei-Woong Cambridge University Press 2019 Journal of paleontology Vol.93 No.2
<B>Abstract</B><P>A nepticulid leaf-mine ichnofossil, <I>Stigmellites janggi</I> Sohn and Nam, n. ichnosp., is described on the basis of a fossil leaf of <I>Fagus</I> 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 <I>Fagus</I> 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.</P><P>UUID: http://zoobank.org/fff951f6-ca82-4cca-a274-863e0d91acaa</P>
Jae-Cheon Sohn,Camiel Doorenweerd,Kye Soo Nam,Sei-Woong Choi 한국응용곤충학회 2018 한국응용곤충학회 학술대회논문집 Vol.2018 No.04
A nepticulid leaf-mine ichnofossil is described on the basis of a fossil leaf of Fagus from the early Miocene Geumgwangdong Formation (ca. 21–14 million years ago) in Pohang basin. This mine trace is characterized by a linear-blotch type with clear centric frass trail of closely and randomly dispersed pellets filling the mine width in early stage. We found traces of possible egg case and exit slit from the fossil. These features are most consistent with those produced by Nepticulidae. Our record represents the only reliably-identified nepticulid leaf-mine on Fagus in Miocene. Nepticulid leaf-mines in Miocene and the leaf-mine fossils from the Geumgwangdong Formation are briefly reviewed.