Palaeoecology of Middle Miocene charophytes from the Vallès‒Penedès and Vilanova basins (Catalonia, Spain)
Sanjuan, Josep (Universitat de Barcelona. Departament de Dinàmica de la Terra i de l'Oceà)
Matamoros, Damià
Casanovas i Vilar, Isaac (Institut Català de Paleontologia Miquel Crusafont)
Vicente, Alba (Universitat de Barcelona. Departament de Dinàmica de la Terra i de l'Oceà)
Moreno Bedmar, Josep Anton (Universidad Nacional Autónoma de México. Instituto de Geología)
Holmes, Jonathan (University College London. Department of Geography)
Martín-Closas, Carles (Universitat de Barcelona. Institut de Recerca de la Biodiversitat (IRBio))

Date:	2022
Abstract:	A diverse charophyte assemblage from the Middle Miocene of the Vallès‒Penedès and Vilanova basins (Catalonia, NE Spain) is here described and illustrated for the first time. This flora has been recovered from three localities: els Casots (Subirats), Vilobí del Penedès, and Mas de l'Alonso‒el Pi Gros (Vilanova i La Geltrú). The charophyte assemblages comprise ten different species distributed among three distinctive aquatic environments, and are approximately simultaneous to major fossil vertebrate sites of these basins. Sphaerochara ulmensis, Chara cf. vulgaris, Chara molassica var. notata, Lychnothamnus barbatus var. antiquus, Lychnothamnus sp. , Nitellopsis (Tectochara) merianii, and Nitellopsis sp. occur associated to abraded benthic foraminifera in organic-rich claystones related to palustrine and shallow freshwater coastal lakes. Lamprothamnium papulosum forms monospecific assemblages in gypsum-claystone alternations attributed to a coastal brackish water salina. Chara cf. hispida and Chara sp. are found to be associated with ostracods in marls and limestones related to a permanent oligohaline and alkaline lake. The discovery of this aquatic flora sheds new light on the palaeoenvironmental conditions that prevailed in the Vallès‒Penedès Basin during the Langhian in the context of the Mid-Miocene Climatic Optimum and in the Vilanova Basin during the Serravallian.
Grants:	Agencia Estatal de Investigación PID2020-113912GB-I00 Agència de Gestió d'Ajuts Universitaris i de Recerca 2017/SGR-841
Rights:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades.
Language:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Subject:	Charophyta ; Neogene ; Aragonian ; Palaeolimnology ; Paleolake ; Palaeoecology
Published in:	Historical biology, (September 2022) , ISSN 1029-2381

DOI: 10.1080/08912963.2022.2106861

Postprint 76 p, 12.8 MB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Institut Català de Paleontologia Miquel Crusafont (ICP)
Articles > Research articles
Articles > Published articles