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Re: Dinosaur Calendar Project
> I am currently reading the journals of Arthur Lakes (DISCOVERING DINOSAURS
> IN THE OLD WEST, edited by Michael F. Kohl and John S. McIntosh, 1997) so
> here's a significant date:
> On March 27th, 1877, Arthur Lakes and Captain Henry C. Beckwith discovered
> the first dinosaur bones eroding out of a hogback near the little
> settlement of Morrison, Colorado.
> Er... I guess I mean the first big *Jurassic* dinosaurs... not the first
> *ever* dinosaurs. Or were there Jurassic or Morrison Formation aged
> dinosaurs discovered elsewhere before that? A little help from the List on
I think this is basically "first Morrison dinosaur bones"; if memory
serves, these were the specimens that got Cope & Marsh interested in
looking for dinos in that area.
> Another question for the List:
> When was the Morrison Formation named? It was named after the town and not
> vice versa, right?
Yes, the Formation is named after the town. Standard stratigraphic
practice is to name a formation or other lithostratigraphic unit after a
geographic locality (typically a town) near the stratotype section (the
lithostratigraphic equivalent to a holotype specimen).
Thomas R. Holtz, Jr.
Email: firstname.lastname@example.org Phone: 301-405-4084
Office: Centreville 1216
Senior Lecturer, Vertebrate Paleontology
Dept. of Geology, University of Maryland
Faculty Director, Earth, Life & Time Program, College Park Scholars
Faculty Director, Science & Global Change Program, College Park Scholars
Mailing Address: Thomas R. Holtz, Jr.
Department of Geology
Building 237, Room 1117
University of Maryland
College Park, MD 20742 USA