In a message dated 96-01-24 08:29:17 EST, darwincr@laplaza.taos.nm.us (JCMcL) writes: >How long after the first broad adaptive radiation of archosaurs did really >large sauropods (bigger than elephants) arise? > > _Barapasaurus tagorei_ from the Lower Jurassic of India attained a length of 60 feet.