A glimpse into ancient food storage: Sequestrichnia and associated nucleocave Chondrites from Eocene deep-sea deposits

Autor: JAROSLAV ŠAMÁNEK, LOTHAR H. VALLON, RADEK MIKULÁŠ, MICHAL VACHEK
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Acta Palaeontologica Polonica, Vol 67, Iss 3, Pp 767-779 (2022)
Druh dokumentu: article
ISSN: 0567-7920
1732-2421
DOI: 10.4202/app.00965.2021
Popis: The old brickyard Velká nad Veličkou in the Czech Republic offers a unique insight into an Eocene deep-sea ichnoassemblage that is dominated by sequestrichnia. Secondary use of such food-stowing was made by the tracemaker of Chondrites intricatus as evidenced by its frequent penetration of the trace fossil Zoophycos brianteus and its occurrence preferentially on the surface of Zoophycos spreiten. Here, the Chondrites tracemaker presumably exploited the nutrient-enriched micro-environment (nucleocave). This close interrelations between Chondrites and Zoophycos support the hypothesis of a sequestrichnial behaviour of the Zoophycos producer. The studied locality also yields Helminthopsis tenuis, Tubulichnium mediterranensis, Scolicia strozzii, ?Dactyloidites isp., Megagrapton irregulare, and Planolites isp.
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