New Middle Eocene Whales from the Pisco Basin of Peru

Three new specimens of middle Eocene cetaceans are reported from the Pisco Basin of southern Peru. All three specimens originate from the Paracas Formation and their minimum age is constrained to about 37 Ma using 40Ar/39Ar dating of ash collected ∼100 m up section from the source localities. Two ne...

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Veröffentlicht in:	Journal of paleontology 2011-09, Vol.85 (5), p.955-969
Hauptverfasser:	Uhen, Mark D, Pyenson, Nicholas D, Devries, Thomas J, Urbina, Mario, Renne, Paul R
Format:	Artikel
Sprache:	eng
Schlagworte:	absolute age Aquatic mammals Ar/Ar Basilosauridae biogeography Blisters Cenozoic Cetacea Cetaceans Chordata cladistics Eocene Eutheria Fossils Geochronology Geology Ica Peru lithostratigraphy Mammalia middle Eocene morphology new taxa Ocucajea picklingi Paleogene Paleontology Paracas Formation Peru phylogeny Pisco Basin Protocetidae Skull South America Spine Sternum Stratigraphy Supayacetus muizoni taxonomy Teeth Tertiary Tetrapoda Theria Vertebrae Vertebrata vertebrate Vertebrates Whales Whales & whaling
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