New records and ichnospecies of linear leaf mines from the late miocene-pliocene from argentina and the establishment of leafmining ichnotaxobases

Abstract

The ichnospecies Cuniculonomus parallelus Givulescu, 1984 and Stigmellites serpentina Kozlov, 1988 arerecorded for the first time in Argentina and the new ichnospecies Cuniculonomus saltensis n. ichnosp., Stigmellites vitatusn. ichnosp. and Stigmellites pervenae n. ichnosp. are defined from two Miocene localities: Peñas Blancas and Quebradadel Horno, from northwestern Argentina. A set of characters to identify fossil linear mines is provided as well asfive ichnotaxobases to differentiate the ichnogenera Cuniculonomus, Stigmellites and Phytomyzites. Two ichnospecies arenow revised and included in Phytomyzites: P. arcuata (Krassilov, 2008a) comb. nov. (Ophionoma) and P. crucitracta (Krassilov,2008a) comb. nov. (Troponoma). Finally, a review of fossil record of linear mines is provided.