FUNGAL RECORD IN A LEGUME WOOD FROM THE CHIQUIMIL FORMATION (UPPER MIOCENE), CATAMARCA, ARGENTINA

Authors

  • Daniela Paula Ruiz Museo Argentino de Ciencias Naturales-CONICET
  • Juan Leandro García Massini Centro Regional de Investigaciones Científicas y Transferencia Tecnológica (CRILAR), Entre Ríos y Mendoza s/n, 5301, Anillaco, La Rioja
  • Leandro Carlos Alcides Martínez Instituto de Botánica Darwinion (ANCEFN - CONICET) Labardén 200, CC22 - B1642HYD, San Isidro, Buenos Aires, Argentina

DOI:

https://doi.org/10.5710/AMGH.31.12.2019.3163

Keywords:

Fossil mitosporic fungi, Conidia, Hyphae, Santa María Group, Fossil woods

Abstract

Herein, we described three types of fossil fungi associated with permineralized legume wood from Upper Miocene deposits in the Río de Agua Verde locality (Chiquimil Formation, Catamarca Province, Argentina). These are represented by diverse fungal remains, including septate hyphae bearing unicellular and multicellular conidia, distributed inside the vessel elements. Vegetative and asexual reproductive structures preserved were compared to extant mitosporic fungi and related to three different genera. The fossils are particularly similar to extant Gilmaniella Barron, Brachysporium Saccardo, and Ramichloridium Stahel ex de Hoog, but display some differences that preclude unequivocal assignment. Due to the absence of host reactions signs in the infected wood, we suggest that the fungi were probably saprotroph and invaded the fossil wood after its death.

Published

2020-03-31

How to Cite

Ruiz, D. P., García Massini, J. L., & Martínez, L. C. A. (2020). FUNGAL RECORD IN A LEGUME WOOD FROM THE CHIQUIMIL FORMATION (UPPER MIOCENE), CATAMARCA, ARGENTINA. Ameghiniana, 57(1), 1-8. https://doi.org/10.5710/AMGH.31.12.2019.3163

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Section

Articles