This is a significantly modified Big Bertha design.  This uses Bertha's original nose cone (BNC-60L), is 24" in overall height, and has 4 fins.  But that's where t' similarities end.  Berthasaurapod has a longer body tube, with swept clipped delta fins.  It also has 4 SRB-like pods appended betwixt t' main fins, plus a bunch o' small strake fins.  T' motor mount is 24mm, so she flies on a bit more motor than a standard Bertha.