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Re: Can we tell if any dinosaurs observed semelparity?

Assuming that multi-year associations of dinosaurs are actually family
groups (not an absolutely safe assumption, but a pretty secure one), then
we have multiple broods of Psittacosaurus, Sinornithomimus, tyrannosaurs,
many centrosaurines, hadrosaurids, and more found together. Since a
semelparous taxon cannot--by definition--produce more than one brood,
semelparity in dinosaurs seems highly unlikely.

Anthony Docimo wrote:
> I was reading an essay by David Quammen about semelparity in bamboo and
> salmon, and my thought was "could sauropods do this?  the long-lived
> females lay their eggs and leave them to the males, while the females limp
> away to draw the predators *away* from the eggs and males."
> Is there any way to tell which, if any, of the dinosaurs practiced
> semelparity?    (having a long long life, breeding once & producing scores
> of young, then dying)
> thank you.
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Thomas R. Holtz, Jr.
Email: tholtz@umd.edu   Phone: 301-405-4084
Office: Centreville 1216
Senior Lecturer, Vertebrate Paleontology
Dept. of Geology, University of Maryland
Fax: 301-314-9661

Faculty Director, Earth, Life & Time Program, College Park Scholars
Faculty Director, Science & Global Change Program, College Park Scholars
Fax: 301-314-9843

Mailing Address:        Thomas R. Holtz, Jr.
                        Department of Geology
                        Building 237, Room 1117
                        University of Maryland
                        College Park, MD 20742 USA