You are not currently logged in.
Access your personal account or get JSTOR access through your library or other institution:
If You Use a Screen ReaderThis content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
The Pleistocene Bush Dog Speothos pacivorus (Canidae) from the Lagoa Santa Caves, Brazil
Journal of Mammalogy
Vol. 65, No. 4 (Nov., 1984), pp. 549-559
Published by: American Society of Mammalogists
Stable URL: http://www.jstor.org/stable/1380837
Page Count: 11
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Preview not available
Cranial, dental, and postcranial remains of the bush dog, Speothos pacivorus (Lund, 1839) are described from deposits of late Pleistocene-Holocene age in the Lagoa Santa Caves, Minas Gerais, Brazil. This species can be distinguished from the extant S. venaticus, on the basis of larger size, presence of metaconule and hypocone on M1, large M2, and double-rooted M2. Re-evaluation of the phylogenetic relationships of South American canids suggests that Speothos is a member of the Cerdocyon clade (including Cerdocyon, Nyctereutes, Atelocynus, and Speothos) and is most closely related to the small-eared dog, Atelocynus. The biogeographic history of the bush dog suggests that it is the product of speciation in South America, probably in the Brazilian highlands during the late Pleistocene and Holocene.
Journal of Mammalogy © 1984 American Society of Mammalogists