Good day,if I understand it correctly, given the fantastic finds in Tanis locality, we can now assume that non-avian dinosaurs were still living at the time of Chicxulub impact and hence there were definitely paleocene dinosaurs. Their demise was relatively fast, but still there were surely living non-avian dinosaur in the days, weeks and perhaps months or years after the impact. So "paleocene (non-avian) dinosaurs" is now a proven fact, isnÂt it? Thank you for your thoughts, Tom
Thomas R. Holtz, Jr.
Email:Âtholtz@umd.eduÂÂÂÂÂÂÂÂ Phone: 301-405-4084
Principal Lecturer, Vertebrate Paleontology
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Dept. of Geology, University of Maryland
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