Early Eocene Spore and Pollen Assemblages from the Laguna del Hunco Fossil Lake Beds, Patagonia, Argentina

Viviana D. Barreda; María del Carmen Zamaloa; María A. Gandolfo; Carlos Jaramillo; Peter Wilf

doi:10.1086/708386

Early Eocene Spore and Pollen Assemblages from the Laguna del Hunco Fossil Lake Beds, Patagonia, Argentina

International Journal of Plant Sciences ◽

10.1086/708386 ◽

2020 ◽

Vol 181 (6) ◽

pp. 594-615 ◽

Cited By ~ 6

Author(s):

Viviana D. Barreda ◽

María del Carmen Zamaloa ◽

María A. Gandolfo ◽

Carlos Jaramillo ◽

Peter Wilf

Keyword(s):

Early Eocene ◽

Lake Beds

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Orbital Forcing of Early Eocene dissolution events and Carbon Isotope Excursions from the Contessa Road-Bottaccione composite section (Gubbio, central Italy)

Rendiconti online della Società Geologica Italiana ◽

10.3301/rol.2014.57 ◽

2014 ◽

Vol 31 ◽

pp. 81-82

Author(s):

Simone Galeotti ◽

Matteo Moretti

Keyword(s):

Carbon Isotope ◽

Central Italy ◽

Early Eocene ◽

Orbital Forcing ◽

Composite Section

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Tethyan planktic foraminiferal record of the early Eocene hyperthermal events ETM2, H2 and I1 (Terche section, northeastern Italy)

Rendiconti online della Società Geologica Italiana ◽

10.3301/rol.2014.48 ◽

2014 ◽

Vol 31 ◽

pp. 66-67 ◽

Cited By ~ 4

Author(s):

Roberta D'Onofrio

Keyword(s):

Early Eocene ◽

Northeastern Italy ◽

Hyperthermal Events ◽

Foraminiferal Record

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Deterioration of symbiont-bearing morozovellid (planktic foraminifera) habitat recorded within the Early Eocene Climatic Optimum: evidence from the Tethys and sub-tropical Atlantic Ocean

Rendiconti online della Società Geologica Italiana ◽

10.3301/rol.2014.92 ◽

2014 ◽

Vol 31 ◽

pp. 145-146

Author(s):

Valeria Luciani

Keyword(s):

Atlantic Ocean ◽

Early Eocene ◽

Tropical Atlantic ◽

Planktic Foraminifera ◽

Tropical Atlantic Ocean ◽

Early Eocene Climatic Optimum ◽

Climatic Optimum

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Temperature, seasonality and salinity history of the early Eocene North Sea Basin inferred from fish otoliths and mollusks

Rendiconti online della Società Geologica Italiana ◽

10.3301/rol.2014.129 ◽

2014 ◽

Vol 31 ◽

pp. 217-218

Author(s):

Daan Vanhove

Keyword(s):

North Sea ◽

Early Eocene ◽

History Of ◽

Temperature Seasonality ◽

Fish Otoliths

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Morphology and Affinities of Ampelocissites Seeds (Vitaceae: Ampelopsis clade) from the Paleogene of Texas, USA

Systematic Botany ◽

10.1600/036364420x15935294613400 ◽

2020 ◽

Vol 45 (3) ◽

pp. 478-482

Author(s):

Steven R. Manchester

Keyword(s):

Computed Tomography ◽

Cross Sections ◽

Seed Coat ◽

Ct Scanning ◽

Seed Morphology ◽

Early Eocene ◽

Micro Computed Tomography ◽

X Ray ◽

Fossil Seeds ◽

Fossil Genus

Abstract—The type material on which the fossil genus name Ampelocissites was established in 1929 has been reexamined with the aid of X-ray micro-computed tomography (μ-CT) scanning and compared with seeds of extant taxa to assess the relationships of these fossils within the grape family, Vitaceae. The specimens were collected from a sandstone of late Paleocene or early Eocene age. Although originally inferred by Berry to be intermediate in morphology between Ampelocissus and Vitis, the newly revealed details of seed morphology indicate that these seeds represent instead the Ampelopsis clade. Digital cross sections show that the seed coat maintains its thickness over the external surfaces, but diminishes quickly in the ventral infolds. This feature, along with the elliptical chalaza and lack of an apical groove, indicate that Ampelocissites lytlensis Berry probably represents Ampelopsis or Nekemias (rather than Ampelocissus or Vitis) and that the generic name Ampelocissites may be useful for fossil seeds with morphology consistent with the Ampelopsis clade that lack sufficient characters to specify placement within one of these extant genera.

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