Cuddie Springs is a notable archaeological and paleontological site in the semi-arid zone of central northern New South Wales, Australia (near Brewarrina). Cuddie Springs is an open site, with the fossil deposits preserved in a claypan on the floor of an ancient ephemeral lake. The claypan fills with water after local rainstorms and often takes months to dry, a fact which facilitated the survival of fossils over a long period of time.