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
5 - Oysters from the base of the Santa Cruz Formation (late Early Miocene) of Patagonia
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
The Santa Cruz Formation (late Early Miocene of Patagonia, Argentina) has been traditionally considered a continental unit and its contact with the underlying Early Miocene Monte León Formation as transitional or unconformable according to different authors. Invertebrates – mainly molluscs – present in the purportedly transitional beds were used as an argument to refer them to the marine Monte León Formation. This was generally accepted, but the lithological features shared with the continental Santa Cruz Formation indicate that they should be included within this unit instead. Analysis of the fauna revealed that the only in situ species in these beds is Crassostrea orbignyi (Ihering, 1897). This oyster belongs in a group adapted to inhabiting marginal marine settings with hard or soft bottom, and tolerating a wide range of salinity and subaereal exposure. The other accompanying members of the fauna are reworked marine molluscs referable to taxa included in the underlying Monte León Formation.
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- Early Miocene Paleobiology in PatagoniaHigh-Latitude Paleocommunities of the Santa Cruz Formation, pp. 83 - 90Publisher: Cambridge University PressPrint publication year: 2012
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