phylogenetic relationships and classification of didelphid marsupials ...

CONTENTS
Abstract .......................................................... 5
Introduction ....................................................... 5
MaterialsandMethods.............................................. 7
Comparative Morphology ............................................. 11
Size and External Features .......................................... 12
CraniumandMandible............................................. 26
Dentition....................................................... 46
Summary....................................................... 60
GeneSequences.................................................... 61
BreastCancerActivating1Gene...................................... 61
DentinMatrixProtein1............................................ 61
Interphotoreceptor Retinoid Binding Protein. . . ........................... 63
RecombinationActivating1Gene..................................... 63
vonWillebrandFactor ............................................. 64
Summary, Sequence Characteristics, and Model Fitting ...................... 64
Phylogenetic Relationships ............................................ 65
AnalysesofNonmolecularData....................................... 66
Single-geneAnalyses............................................... 69
AnalysesofConcatenatedGenes...................................... 76
AnalysesofCombinedDatasets....................................... 76
Discussion ...................................................... 78
Classification...................................................... 81
A Revised Phylogenetic System ....................................... 84
FamilyDidelphidaeGray,1821....................................... 86
Subfamily Glironiinae, new .......................................... 88
Glironia Thomas,1912............................................ 89
Subfamily Caluromyinae Reig et al., 1987 ................................ 91
Caluromys J.A.Allen,1900 ........................................ 92
Caluromysiops Sanborn, 1951 ....................................... 95
Subfamily Hyladelphinae, new ........................................ 97
Hyladelphys Vossetal.,2001....................................... 97
Subfamily Didelphinae Gray, 1821 .................................... 100
TribeMarmosiniHershkovitz,1992................................. 100
Marmosa Gray,1821.......................................... 101
Monodelphis Burnett,1830...................................... 105
Tlacuatzin Voss and Jansa, 2003 .................................. 108
Tribe Metachirini Hershkovitz, 1992 ................................. 110
Metachirus Burmeister,1854..................................... 110
TribeDidelphiniGray,1821....................................... 113
Chironectes Illiger,1811........................................ 113
Didelphis Linnaeus, 1758 ....................................... 116
Lutreolina Thomas,1910 ....................................... 118
Philander Brisson, 1762 ........................................ 121
TribeThylamyiniHershkovitz,1992................................. 124
Chacodelphys Vossetal.,2004 ................................... 124
Cryptonanus Vossetal.,2005.................................... 126
Gracilinanus GardnerandCreighton,1989........................... 128
Lestodelphys Tate, 1934 ........................................ 131
Marmosops Matschie,1916...................................... 134
Thylamys Gray,1843.......................................... 138
Acknowledgments ................................................. 141
3