TY - JOUR
T1 - An exceptional specimen of cimexomys judithae (mammalia: Multituberculata) from the campanian two medicine formation of montana, and the phylogenetic status of cimexomys
AU - Montellano, Marisol
AU - Weil, Anne
AU - Clemens, William A.
N1 - Funding Information:
We thank Jack Homer and Pat Leiggi at Museum of the Rockies for making specimens and site information available to us, Mark Goodwin for preparation of specimens, Karen Klitz of the Museum of Vertebrate Zoology for her stellar illustra-tions, and the UCMP for financial support of the preparation and illustration of specimens. Comments from Jeff Eaton and an anonymous reviewer substantially improved this manuscript. This is UCMP contribution 1708.
PY - 2000/6
Y1 - 2000/6
N2 - We here describe a near-complete dentition, partial rostrum, and associated lumbar vertebrae of the multituberculate mammal Cimexomys judithae, discovered on a dinosaur nest horizon at Egg Mountain, in Montana’s Campanian Two Medicine Formation. This specimen confirms associations of isolated teeth made by previous authors and provides a wealth of phylogenetically useful information. A phylogenetic analysis including this specimen indicates that Cimexomys is diagnosed on the basis of primitive and widely distributed character states, is probably not monophyletic, and that C. judithae is more derived than other species of Cimexomys. Species of Cimexomys are too primitive to be included in the suborders Taeniolabidoidea or Ptilodontoidea, and are thus useful as outgroups in future analyses, but they must be scored separately to insure monophyly.
AB - We here describe a near-complete dentition, partial rostrum, and associated lumbar vertebrae of the multituberculate mammal Cimexomys judithae, discovered on a dinosaur nest horizon at Egg Mountain, in Montana’s Campanian Two Medicine Formation. This specimen confirms associations of isolated teeth made by previous authors and provides a wealth of phylogenetically useful information. A phylogenetic analysis including this specimen indicates that Cimexomys is diagnosed on the basis of primitive and widely distributed character states, is probably not monophyletic, and that C. judithae is more derived than other species of Cimexomys. Species of Cimexomys are too primitive to be included in the suborders Taeniolabidoidea or Ptilodontoidea, and are thus useful as outgroups in future analyses, but they must be scored separately to insure monophyly.
UR - http://www.scopus.com/inward/record.url?scp=0034560924&partnerID=8YFLogxK
U2 - 10.1671/0272-4634(2000)020[0333:AESOCJ]2.0.CO;2
DO - 10.1671/0272-4634(2000)020[0333:AESOCJ]2.0.CO;2
M3 - Article
AN - SCOPUS:0034560924
SN - 0272-4634
VL - 20
SP - 333
EP - 340
JO - Journal of Vertebrate Paleontology
JF - Journal of Vertebrate Paleontology
IS - 2
ER -