Book contents
- Early Miocene Paleobiology in Patagonia
- Frontispiece
- Early Miocene Paleobiology in Patagonia
- Copyright page
- Contents
- Contributors
- Preface
- 1 Background for a paleoecological study of the Santa Cruz Formation (late Early Miocene) on the Atlantic Coast of Patagonia
- 2 Tephrochronology of the Miocene Santa Cruz and Pinturas Formations, Argentina
- 3 Absolute and relative ages of fossil localities in the Santa Cruz and Pinturas Formations
- 4 Sedimentology and paleoenvironment of the Santa Cruz Formation
- 5 Oysters from the base of the Santa Cruz Formation (late Early Miocene) of Patagonia
- 6 Ichnology of distal overbank deposits of the Santa Cruz Formation (late Early Miocene): paleohydrologic and paleoclimatic significance
- 7 Fossil plant studies from late Early Miocene of the Santa Cruz Formation: paleoecology and paleoclimatology at the passive margin of Patagonia, Argentina
- 8 Amphibians and squamate reptiles from the Santa Cruz Formation (late Early Miocene), Santa Cruz Province, Argentina: paleoenvironmental and paleobiological considerations
- 9 Diversity and paleobiology of the Santacrucian birds
- 10 Paleoecology of the Paucituberculata and Microbiotheria (Mammalia, Marsupialia) from the late Early Miocene of Patagonia
- 11 Paleoecology of the mammalian carnivores (Metatheria, Sparassodonta) of the Santa Cruz Formation (late Early Miocene)
- 12 Paleobiology of Santacrucian glyptodonts and armadillos (Xenarthra, Cingulata)
- 13 Paleobiology of the Santacrucian sloths and anteaters (Xenarthra, Pilosa)
- 14 Paleobiology of Santacrucian native ungulates (Meridiungulata: Astrapotheria, Litopterna and Notoungulata)
- 15 Paleobiology of Santacrucian caviomorph rodents: a morphofunctional approach
- 16 Paleobiology of Santacrucian primates
- 17 A review of the paleoenvironment and paleoecology of the Miocene Santa Cruz Formation
- Index
7 - Fossil plant studies from late Early Miocene of the Santa Cruz Formation: paleoecology and paleoclimatology at the passive margin of Patagonia, Argentina
Published online by Cambridge University Press: 05 June 2013
- Early Miocene Paleobiology in Patagonia
- Frontispiece
- Early Miocene Paleobiology in Patagonia
- Copyright page
- Contents
- Contributors
- Preface
- 1 Background for a paleoecological study of the Santa Cruz Formation (late Early Miocene) on the Atlantic Coast of Patagonia
- 2 Tephrochronology of the Miocene Santa Cruz and Pinturas Formations, Argentina
- 3 Absolute and relative ages of fossil localities in the Santa Cruz and Pinturas Formations
- 4 Sedimentology and paleoenvironment of the Santa Cruz Formation
- 5 Oysters from the base of the Santa Cruz Formation (late Early Miocene) of Patagonia
- 6 Ichnology of distal overbank deposits of the Santa Cruz Formation (late Early Miocene): paleohydrologic and paleoclimatic significance
- 7 Fossil plant studies from late Early Miocene of the Santa Cruz Formation: paleoecology and paleoclimatology at the passive margin of Patagonia, Argentina
- 8 Amphibians and squamate reptiles from the Santa Cruz Formation (late Early Miocene), Santa Cruz Province, Argentina: paleoenvironmental and paleobiological considerations
- 9 Diversity and paleobiology of the Santacrucian birds
- 10 Paleoecology of the Paucituberculata and Microbiotheria (Mammalia, Marsupialia) from the late Early Miocene of Patagonia
- 11 Paleoecology of the mammalian carnivores (Metatheria, Sparassodonta) of the Santa Cruz Formation (late Early Miocene)
- 12 Paleobiology of Santacrucian glyptodonts and armadillos (Xenarthra, Cingulata)
- 13 Paleobiology of the Santacrucian sloths and anteaters (Xenarthra, Pilosa)
- 14 Paleobiology of Santacrucian native ungulates (Meridiungulata: Astrapotheria, Litopterna and Notoungulata)
- 15 Paleobiology of Santacrucian caviomorph rodents: a morphofunctional approach
- 16 Paleobiology of Santacrucian primates
- 17 A review of the paleoenvironment and paleoecology of the Miocene Santa Cruz Formation
- Index
Summary
This chapter analyses plant fossils including phytoliths, carbonized wood, and leaf compressions, along with microcharcoal, chrysophycean stomatocysts, sponge spicules, and diatoms, recovered from the Estancia La Costa Member, Santa Cruz Formation (late Early Miocene), in the Atlantic margin of Patagonia, Argentina. The floristic composition and paleoclimatic inferences based on this fossil plants assemblage from the late Early Miocene are presented. The fossil flora is characterized by the presence of herbaceous components including chloridoid, panicoid, danthonioid, pooid, and festucoid grasses. The arboreal elements include members of the Araucariaceae, Lauraceae, Arecaceae, Nothofagaceae, Myrtaceae, Cunoniaceae, Fabaceae (Faboideae), and ?Proteaceae. The vegetation was a mixture of open temperate semi-arid forests and humid warm-temperate forests. The integrated analysis of multiple sets of proxy data suggests that southeastern Patagonia, during late Early Miocene, was characterized by a temperate to warm-temperate and semi-arid to humid climate, where seasonal low levels of precipitation served as a limiting factor for plant growth.
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- Information
- Early Miocene Paleobiology in PatagoniaHigh-Latitude Paleocommunities of the Santa Cruz Formation, pp. 104 - 128Publisher: Cambridge University PressPrint publication year: 2012
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