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Re: Ducks present and past (was Re: ARE ORNITHOPODS BORING?)



In a message dated 2/14/01 2:39:50 PM Pacific Standard Time, 
twilliams_alpha@hotmail.com writes:

<< Olson and Parris (1987) 
 previously reported _Anatalavis_ from New Jersey, as one of several species 
 of birds from the Navesink and Hornerstown formations.  To anyone's 
 knowledge have either of these formations been pinned down to either late 
 Upper Cretaceous or early Paleocene? >>

    Dale Russell, in _A Check List of North American Marine Cretaceous 
Vertebrates Including Fresh Water Fishes_1988, gives an early Maastrichtian 
age for the Navesink and latest Maastrichtian for the Hornerstown. Both have 
dinosaurs and mosasaurs. DV.