RT Journal Article T1 A new enigmatic lacustrine trackway in the upper Miocene of the Sierra de las Cabras (Jumilla, Murcia, Spain) A1 Mayoral Alfaro, Eduardo A1 Herrero, Cayetano A1 Herrero, Emilio A1 Martín Chivelet, Javier A1 Pérez Lorente, Felix AB A new fossil trackway is described in the upper lacustrine Miocene in the Prebetic Zone of the Iberian Peninsula, in Jumilla town (Murcia region) called Aenigmatipodus jumillensis nov. ichnogen. nov. ichnosp. This trackway consists of a pattern made up of sets of three tracks or triads, which are subparallel to each other, arranged in alternate groups. Each track presents a depression formed by a central body that is three times as long as it is wide, with straight or slightly curved walls, with two shorter bodies placed at the ends, one of the ends being shorter and more pronounced than the opposite, which is longer and stretched. All the biomechanical possibilities compatible with an anatomical design that could leave the impression of three alternate triads of tracks are analysed. The supports are only from the extremities on one side of the organism (left or right), the displacement being by translation. It is concluded that it had to be a large arthropod (metre scale), with a hexapod or decapod (less probably octopod), which had to be dragged laterally by a current in a very shallow lake or wetland environment. To date, no fossil organism is known, nor its current equivalent, that corresponds to these characteristics. PB Springer SN 1698-6180 YR 2023 FD 2023 LK https://hdl.handle.net/20.500.14352/101448 UL https://hdl.handle.net/20.500.14352/101448 LA eng NO Mayoral, Eduardo, et al. «A New Enigmatic Lacustrine Trackway in the Upper Miocene of the Sierra de Las Cabras (Jumilla, Murcia, Spain)». Journal of Iberian Geology, vol. 49, n.o 3-4, diciembre de 2023, pp. 237-56. https://doi.org/10.1007/s41513-023-00215-9. NO Ministerio de Ciencia e Innovación (España) NO Junta de Andalucía NO Universidad de Huelva DS Docta Complutense RD 6 abr 2025