Broomia perplexa (Watson 1914, Thommasin and Carroll 1981, Middle Permian) nests as a sister or Milleropsis in the large reptile tree and is not related to Milleretta. While sharing several traits with Milleropsis, Broomia also helps fill in certain gap, like the vertebrae that are not well preserved in Milleropsis. Note the large posterior processes on the proximal femora. The length of the neck can be estimated by the position of the head and pectoral girdle. These taxa may have been facultatively bipedal in the manner of modern lizards.
Note the elongation of the ulnare and intermedium, which continues in Petrolacosaurus. |
