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1989

Department of Earth and Atmospheric Sciences: Faculty Publications

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Full-Text Articles in Earth Sciences

Evolution Of The Aeluroid Carnivora: Significance Of The Ventral Promontorial Process Of The Petrosal, And The Origin Of Basicranial Patterns In The Living Families, Robert M. Hunt Jr. Jan 1989

Evolution Of The Aeluroid Carnivora: Significance Of The Ventral Promontorial Process Of The Petrosal, And The Origin Of Basicranial Patterns In The Living Families, Robert M. Hunt Jr.

Department of Earth and Atmospheric Sciences: Faculty Publications

In studies of carnivoran phylogeny, the configuration and ontogenetic development of the auditory bulla enclosing the middle ear have been useful in tracing modern lineages to their first appearances in the mid-Cenozoic. Pre-Oligocene carnivorans, however, lack preserved bullae and have been difficult to relate to later Cenozoic groups. The carnivoran petrosal bone, because of its durability both in intact skulls and as an isolated element, can be tracked through Cenozoic time, and can supply new information on lineage continuity through its geometry and spatial relationships. Aeluroid carnivorans are united by a petrosal of characteristic shape, distinguished by a ventral promontorial …


Resultats Preliminaires De La Campagne De Forages Du Joides Resolution Sur Le Plateau De Kerguelen (Odp Leg 120)/ Preliminary Results Of Odp Leg 120 In The Central And Southern Kerguelen Plateau, Roland Schlich, Marc Munschy, Hubert Whitechurch, Marie-Pierre Aubry, Sherwood Wise Jr., Amanda Palmer, William Berggren, Peter Bitschene, Neal Blackburn, James Breza, Millard Coffin, David M. Harwood, Franz Heider, Mary Anne Holmes, William Howard, Hiroo Inokuchi, Kerry Kelts, David Lazarus, Andreas Mackenzen, Toshiaka Maruyama, Elizabeth Pratson, Patrick Quilty, Frank Rack, Vincent Salters, James Sevigny, Michael Storey, Atsushi Takemura, David Watkins, James Zachos Jan 1989

Resultats Preliminaires De La Campagne De Forages Du Joides Resolution Sur Le Plateau De Kerguelen (Odp Leg 120)/ Preliminary Results Of Odp Leg 120 In The Central And Southern Kerguelen Plateau, Roland Schlich, Marc Munschy, Hubert Whitechurch, Marie-Pierre Aubry, Sherwood Wise Jr., Amanda Palmer, William Berggren, Peter Bitschene, Neal Blackburn, James Breza, Millard Coffin, David M. Harwood, Franz Heider, Mary Anne Holmes, William Howard, Hiroo Inokuchi, Kerry Kelts, David Lazarus, Andreas Mackenzen, Toshiaka Maruyama, Elizabeth Pratson, Patrick Quilty, Frank Rack, Vincent Salters, James Sevigny, Michael Storey, Atsushi Takemura, David Watkins, James Zachos

Department of Earth and Atmospheric Sciences: Faculty Publications

Resume - Le Leg 120 du programme international de forages oceaniques (Ocean Drilling Project) a permis de determiner la nature et l'age du plateau de Kerguelen et de decrire son evolution depuis Ie Cretace. Le socle, fore aux sites 747, 749 ct 750, est compose de coulees basaltiqucs qui correspondent a des tholeiites transitionnelles saturees en silice. Ces basaltes se sont mis en place dans des conditions aeriennes ou sub-aeriennes avant Ie Cenomanien sur une surface quasiment horizontalc. Les premiers sediments, d'age Cenomanien, se sont deposes en milieu fluviatile. Au Campanien et a la fin du Maestrichtien Ie plateau a …