Gazelle : The Palestinian Biological Bulletin (ISSN 0178 – 6288) . Number 117, September 2014, pp. 1-33.

19 Distinguishing anatomical features A diagnosis is a statement of the anatomical features of an organism (or group) that collectively distinguish it from all other organisms. Some, but not all, of the features in a diagnosis are also autapomorphies. An autapomorphy is a distinctive anatomical feature that is unique to a given organism (Wikipedia). According to Rauhut (2000), Elaphrosaurus can be distinguished based on the following characteristics:     the cervical vertebrae possess thin latero-ventral laminae, bordering the posterior pleurocoel ventrally the cervical vertebrae are strongly concave ventrally, with the ventral margin arching above the mid-height of the anterior articular facet at its highest point the brevis fossa of the ilium is extremely widened, so that the brevis shelf forms an almost horizontal lateral flange the distal end of the ischium is strongly expanded into a triangular boot (Wikipedia). Prof. Dr. Norman Ali Bassam Khalaf-von Jaffa at the Beit Zeit Dinosaur Site, West of Al-Quds (Jerusalem), Occupied Palestine. 09.07.2013. Photo by my beloved wife: Ola Mostafa Khalaf. http://www.flickr.com/photos/50022881@N00/12265065885/ Gazelle : The Palestinian Biological Bulletin – Number 117 – September 2014

Gazelle : The Palestinian Biological Bulletin (ISSN 0178 – 6288) . Number 117, September 2014, pp. 1-33. | Page 19