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| | Zoological Journal of the Linnean Society Abstract (Site not responding. Last check: 2007-10-26) |
 | | Two distinctive features are recognized, that can be traced back in the fossil record: the sulcal pattern medial to the coronal sulci, and the shape and relative size of the proreal gyrus. |
 | | Four types are described for the first feature: (1) orthogonal: Canis, Lycaon, Cuon, Atelocynus, Speothos, (2) pentagonal: Vulpes, Alopex, Otocyon,†Eucyon, (3) parenthesis-like: 8224;Dusicyon, Pseudalopex, Chrysocyon, (4) heart-shaped: Urocyon, Cerdocyon, Pseudalopex culpaeus, Nyctereutes. |
 | | Three types are described for the second feature: (1) elongated and bilaterally compressed: Canis, Cuon, Lycaon, Atelocynus, Speothos, Cerdocyon,†Dusicyon, Chrysocyon, Pseudalopex, †Nyctereutes sinensis, †N. |
| www.blackwellpublishing.com /abstract.asp?ref=0024-4082&vid=138&iid=4&aid=6&s=-9999 (381 words) |
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