First xiphosuran traceway in the middle Muschelkalk facies (Middle Triassic) of the Catalan Basin (NE Iberian Peninsula)

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(Institut Català de Paleontologia Miquel Crusafont)
Mujal, Eudald

(Institut Català de Paleontologia Miquel Crusafont)
Fortuny, Josep

(Institut Català de Paleontologia Miquel Crusafont)

Fecha:	2020
Resumen:	In the last decade, the first ichnoassamblages from the middle Muschelkalk facies (upper Anisian-middle Ladinian) of the Catalan Basin (NE Iberian Peninsula) have been discovered. Herein, the first xiphosuran trace fossils are described from the locality of Penya Rubí, a newly discovered ichnosite from the Catalan Basin. The finding opens a window into peri-Tethys ecosystems with coastal influence. The traceway is referred to the ichnogenus Kouphichnium, a locomotion trace attributed to xiphosurans. The traceway preserves telson grooves and different imprint morphologies from the various appendages. The traceway pattern and arrangement of the different traces suggest a crawling locomotion style. The sedimentology suggests a coastal zone with areas influenced by tides (intertidal flat). The morphological variations of the ichnites are correlated to substrate rheology, the locomotion of the tracemaker and environmental conditions.
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Lengua:	Anglès
Documento:	Article ; recerca ; Versió publicada
Materia:	Invertebrate ichnology ; Kouphichnium ; Telson ; Middle Triassic ; Coastal palaeoenvironment
Publicado en:	Spanish Journal of Paleontology, 2020 , ISSN 2255-0550

12 p, 8.4 MB

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