Taphonomy and Paleoecology of the Bivalve Trace Fossil Protovirgularia in Deltaic Heterolithic Facies of the Miocene Chenque Formation, Patagonia, Argentina

Lower Miocene tide-influenced deltaic deposits from the Chenque Formation, Patagonia, Argentina, contain abundant and well-preserved biogenic structures attributed to locomotion of deposit-feeder protobranch bivalves. These trace fossils, assigned to the ichnogenus Protovirgularia, consist of delica...

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Veröffentlicht in:	Journal of paleontology 2010-07, Vol.84 (4), p.730-738
Hauptverfasser:	Carmona, Noelia B, Mángano, María Gabriela, Buatois, Luis A, Ponce, Juan José
Format:	Artikel
Sprache:	eng
Schlagworte:	Argentina Bedding bivalve trace fossils Bivalvia Caleta Olivia Argentina Cenozoic Chenque Formation deltaic environment deltas Fossils Friction Geological facies Grain size ichnofossils ichnology Invertebrata invertebrate lithofacies lithostratigraphy Locomotion lower Miocene Miocene Mollusca Mollusks morphology Mud Mudstone Neogene Oxygen depletion Paleoecology paleoenvironment Paleontology Patagonia Protovirgularia Sandstone Sandstones Santa Cruz Argentina Sedimentation rates Sediments Shellfish South America Studies Taphonomy Tertiary Trace fossils trails Turbidity
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