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Re: [dinosaur] Latenivenatrix, new troodontid from Dinosaur Park Formation, Alberta (validity of Troodon)



In a related point, if Pisanosaurus does prove to belong in a clade with Silesaurus, Asilisaurus, and co., but not dinosaurs, a strict reading of the rules means this family should be Pisanosauridae (which has a 30-some year priority over Silesauridae).

On Sat, Aug 12, 2017 at 8:54 AM, Thomas Richard Holtz <tholtz@umd.edu> wrote:
Hmmm... Russell for "Tyrannosauridae", Currie for "Troodontidae"...

BLAME CANADA!  :-) :-)

On Sat, Aug 12, 2017 at 6:15 AM, Matt Martyniuk <martyniuk@gmail.com> wrote:
Well, there was some question over whether or not Troodon was an ornithopod at one point. But what we now think of as "troodontids" were fairly well known, and known to be theropods. Saurornithoides, Stenonychosaurus, etc. It's just that they were called Saurornithoidids back then until Currie synonymized Stenonychosaurus with Troodon.

Matt Martyniuk

> On Aug 12, 2017, at 1:50 AM, Tim Williams <tijawi@gmail.com> wrote:

> Thus, Saurornithoididae should have
> preference over Troodontidae.  It's also worth remembering that the
> current usage of Troodontidae only goes back to 1987.  Before that,
> there were differing opinions over whether troodontids were theropods
> or ornithopods.



--

Thomas R. Holtz, Jr.
Email: tholtz@umd.edu         Phone: 301-405-4084
Principal Lecturer, Vertebrate Paleontology

Office: Geology 4106, 8000 Regents Dr., College Park MD 20742

Dept. of Geology, University of Maryland
http://www.geol.umd.edu/~tholtz/

Phone: 301-405-6965
Fax: 301-314-9661              

Faculty Director, Science & Global Change Program, College Park Scholars

Office: Centreville 1216, 4243 Valley Dr., College Park MD 20742
http://www.geol.umd.edu/sgc
Fax: 301-314-9843

Mailing Address:        Thomas R. Holtz, Jr.
                        Department of Geology
                        Building 237, Room 1117

                        8000 Regents Drive
                        University of Maryland
                        College Park, MD 20742-4211 USA




--

Thomas R. Holtz, Jr.
Email: tholtz@umd.edu         Phone: 301-405-4084
Principal Lecturer, Vertebrate Paleontology

Office: Geology 4106, 8000 Regents Dr., College Park MD 20742

Dept. of Geology, University of Maryland
http://www.geol.umd.edu/~tholtz/

Phone: 301-405-6965
Fax: 301-314-9661              

Faculty Director, Science & Global Change Program, College Park Scholars

Office: Centreville 1216, 4243 Valley Dr., College Park MD 20742
http://www.geol.umd.edu/sgc
Fax: 301-314-9843

Mailing Address:        Thomas R. Holtz, Jr.
                        Department of Geology
                        Building 237, Room 1117

                        8000 Regents Drive
                        University of Maryland
                        College Park, MD 20742-4211 USA