Abstract:
:Recent expeditions to the Fayum Depression, Egypt, have made possible the discovery of mandibles and a maxilla of a new genus and species of late Eocene elephant-shrew as well as initial evidence of the upper dentition of the early Oligocene taxon Metoldobotes. These fossils demonstrate that macroscelideans underwent a significant radiation in the Early Tertiary of Africa. Two new subfamilies are recognized and described. These Tertiary macroscelideans are the most primitive elephant-shrews known and indicate that previous hypotheses of a close phylogenetic relationship between macroscelideans and either lagomorphs, erinaceotans, or tree-shrews are unlikely. Rather, the dental anatomy of the Fayum macroscelideans provides evidence for a derivation of the order from within the Condylarthra.
journal_name
Proc Natl Acad Sci U S Aauthors
Simons EL,Holroyd PA,Bown TMdoi
10.1073/pnas.88.21.9734keywords:
subject
Has Abstractpub_date
1991-11-01 00:00:00pages
9734-7issue
21eissn
0027-8424issn
1091-6490journal_volume
88pub_type
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