Abstract
This paper documents the discovery of peridinioid organic walled dinoflagellate cysts in Holocene sediments of the freshwater, low-alkalinity, high mountain Lake Nero di Cornisello (Adamello mountain range, Trentino, Italy). Among the three main cyst morphotypes found in the samples, the dominant one is acavate, with a smooth and light brown colored wall, with a clear conical shape, elongated with a pointy to rounded end in the antapical-ventral part, with the epicyst broader than the hypocyst and displays a typical peridinioid archeopyle. Comparison with data available in literature, besides pointing out the general scarcity of observations on dinocysts in lakes sediments, suggested a strong morphological similarity with the marine genus Brigantedinium. This finding pinpoints the need for more detailed studies on cysts in freshwater environments offering a new tool for paleoenvironmental interpretations.
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Aceti A, Arpenti E, Orombelli G, Pini R, Ravazzi C (2005) Holocene climatic oscillations in the high mountains: new evidences and chronological constrains from the Southern side of the Alps. In “Open science conference: global change in mountain regions”, Perth, Scotland, UK, 2–6 October 2005
Batten DJ, Lister JK (1988) Early Cretaceous dinoflagellate cysts and chlorococcalean algae from freshwater and low salinity palynofacies in the English Wealden. Cretaceous Res 9:337–367
Batten DJ, Gray J, Harland R (1999) Palaeoenvironmental significance of a monospecific assemblage of dinoflagellate cysts from the Miocene Clarkia Beds, Idaho, USA. Palaeogeogr Palaeocl Palaeoecol 153:161–177
Callegari E, Brack P (2002) Geological map of the Tertiary Adamello Batholith (Northern Italy—Explanatory notes and legend. Mem Sci Geol 54:19–49
Cantonati M, Tolotti M, Lazzara M (eds) (2002) I laghi del Parco Naturale Adamello-Brenta. Documenti del Parco 14: 1-285. ISBN 88-900841-0-3
Evitt WR, Gocht H, Netzel H (1985) Gonyaulax cysts from lake Zürich sediments. Rev Palaeobot Palynol 45:35–46
Fensome RA, Taylor FJR, Norris G, Sarjeant WAS, Wharton DI, Williams GL (1993) A classification of living and␣fossil dinoflagellates. Micropaleontology, Special Publication 7
Findlay DL, Kling HJ, Rönicke H, Findlay WJ (1998) A paleolimnological study of eutrophied Lake Arendsee (Germany). J Paleolimnol 19:41–54
Köhler J, Clausing A (2000) Taxonomy and palaeoecology of dinoflagellate cysts from Upper Oligocene freshwater sediments of Lake Enspel, Westerwald area, Germany. Rev Palaeobot Palynol 112:39–49
Kouli K, Brinkhuis H, Dale B (2001) Spiniferites cruciformis: a freshwater dinoflagellate cyst? Rev Palaeobot Palynol 113:273–286
Marret F, Leroy S, Chalié F, Gasse F (2004) New organic-walled dinoflagellate cysts from recent sediments of Central Asian seas. Rev Palaeobot Palynol 129:1–20
Mudie PJ, Rochon A, Aksu AE, Gillespie H (2004) Late glacial, Holocene and modern dinoflagellate cyst assemblages in the Aegean-Marmara-Black Sea corridor: statistical analysis and re-interpretation of the early Holocene Noah’s Flood Hypothesis. Rev Palaeobot Palynol 128:143–167
Norris G, McAndrews J (1970) Dinoflagellate cysts from post-Glacial lake muds, Minnesota (U.S.A). Rev Palaeobot Palynol 10:131–156
Tardio M, Cantonati M, Filippi ML (2006) Seasonal dynamics of two dinoflagellates in a very low alkalinity high mountain lake (L. Nero di Cornisello, Adamello-Brenta Natural Park, NE Italy). Hydrobiologia. Accepted
Wall D, Dale B (1968) Modern dinoflagellate cyst and evolution of the Peridiniales. Micropaleontology 14:265–304
Zippi P, Yung YK, McAndrews J, Stokes P, Norris G (1990) An investigation of the potential of Zygnematacean zygospores, Peridinium, and Pediastrum as paleo-indicators of recent lake acidification. Environmental Research, Technology Transfer Conference, Proceedings 1:393–396
Acknowledgements
The work for this paper was carried out in the frame of the Ph.D. thesis of the first author at the University of Pisa (Italy; Doctoral Study Programme in Evolutionary Biology—Protistology). We are grateful to the Autonomous Province of Trento for funding the OLOAMBIENT project; we thank Natasja Welters and Jan van Tongeren for laboratory assistance, the MTSN research fellows, who assisted us during field work and the Fireman Permanent Group of Trento Province for assistance in field operation.
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Tardio, M., Sangiorgi, F., Brinkhuis, H. et al. Peridinioid dinoflagellate cysts in a Holocene high-mountain lake deposit in Italy. J Paleolimnol 36, 315–318 (2006). https://doi.org/10.1007/s10933-006-9001-1
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DOI: https://doi.org/10.1007/s10933-006-9001-1