| | Gondwanatheria (Site not responding. Last check: 2007-10-14) |
 | | It was the thorough study of Spec's gondwanatheres that unveiled their true identity and in fact the affinities of the whole of the Gondwanatheria. |
 | | Meanwhile, the booboos are thought to belong to a basal Australian branch of the Gondwanatheria known as Atavotheriidae, which contains many strange forms, some extinct, the most widespread members being the booboos. |
 | | Atavotheriidae in general shares many dental features with the other gondwanatheres, including the pattern of heterodonty and the hypsodont dentition, but the skeletal characteristics are bizarre in their similarity to the Monotremata, probably uniting the two groups under the Australosphenida – a proposal that the genetic evidence now supports. |
| www.unet.univie.ac.at /~a0000265/Gondwanatheria.htm (1850 words) |