THE UNIVERSITY OF MICHIGAN

ANN ARBOR, MICHIGAN, USA 48109-1079

 

MUSEUM OF ZOOLOGY                                   PHONE:  (734) 647•2206

MAMMAL DIVISION                                         FAX: (734) 763-4080 email pmyers@umich.edu

                                                                              9 December 2001

 

Dr. Tom Cooley

Rose Lake Wildlife Disease Laboratory

East Lansing, MI

 

Dear Tom,

 

            We examined the felid skull this morning and agree that it is a cougar, Puma concolor   We compared it to western and Central American cougars, jaguars, and leopards. The Michigan specimen matches cougars and differs from the other species in the conformation of its nasals and rostrum, shape of the posterior end of palate, and other details of cranial anatomy.

 

            The animal appears to have been an adult, neither notably old nor young. The suture between basioccipital and basisphenoid is fused, for example, which would not be the case if the animal were young. That the animal was adult is also suggested by the fact that the skull is rather large, at least compared to most of the 10 or so specimens to which we compared it.

 

            Given the animal's apparent age, we were surprised at how unworn the animal's cheekteeth were, especially the upper carnmassials and P3's. This suggests to us (but certainly does not prove) that the animal may have been an escaped captive; wild individuals of similar age in the UMMZ and MSUM collections generally have teeth that are more worn.

 

            Because the possibility remains that this was a wild animal, we think it is essential that the specimen end up in a scientific collection in Michigan, where it will he available for future study and provide a permanent record of the species not become part of someone's private collection.

 

                                                                              Sincerely yours,                                   -

 

                                                                              Barbara L. Lundrigan

                                                                              Assistant Professor, Dept. of Zoology

                                                                              Curator of Mammals and Birds

                                                                              Michigan State University Museum

 

 

                                                                              Philip Myers

                                                                              Associate Professor of Ecology and Evolution

                                                                              Associate Curator of Mammals

                                                                              University of Michigan Museum of Zoology

 

Note:  This is a scanned version of the original document